{"title":"Vacuum Pump Accessories","description":"Laboratory Vacuum Pump Accessories, Vacuum Oil, vacuum pump repair, Vacuum Pump repair kits, Vacuum Pump oil.","products":[{"product_id":"welch-1397k-08-major-repair-kit-for-1397-and-1374-vacuum-pump","title":"Welch 1397K‐08, MAJOR REPAIR KIT, for 1397 and 1374 Vacuum Pump","description":"\u003cp dir=\"auto\" style=\"white-space: pre-wrap;\" bis_size='{\"x\":12,\"y\":9,\"w\":560,\"h\":78,\"abs_x\":621,\"abs_y\":-485}'\u003eThe Welch 1397K‐08 Major Repair Kit is a complete overhaul kit designed for the Welch 1397 and 1374 DUOSEAL vacuum pumps. This high-quality kit includes all major components needed for a full rebuild, restoring your pump to like-new performance and extending its service life significantly.\u003c\/p\u003e\n\u003cp dir=\"auto\" style=\"white-space: pre-wrap;\" bis_size='{\"x\":12,\"y\":103,\"w\":560,\"h\":19,\"abs_x\":621,\"abs_y\":-391}'\u003e\u003cstrong bis_size='{\"x\":12,\"y\":103,\"w\":84,\"h\":19,\"abs_x\":621,\"abs_y\":-391}'\u003eKit Contents:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul dir=\"auto\" bis_size='{\"x\":12,\"y\":139,\"w\":560,\"h\":117,\"abs_x\":621,\"abs_y\":-355}'\u003e\n\u003cli bis_size='{\"x\":52,\"y\":139,\"w\":520,\"h\":19,\"abs_x\":661,\"abs_y\":-355}'\u003eVanes (blades)\u003c\/li\u003e\n\u003cli bis_size='{\"x\":52,\"y\":159,\"w\":520,\"h\":19,\"abs_x\":661,\"abs_y\":-335}'\u003eValve springs and retainers\u003c\/li\u003e\n\u003cli bis_size='{\"x\":52,\"y\":178,\"w\":520,\"h\":19,\"abs_x\":661,\"abs_y\":-316}'\u003eGaskets and O-rings\u003c\/li\u003e\n\u003cli bis_size='{\"x\":52,\"y\":198,\"w\":520,\"h\":19,\"abs_x\":661,\"abs_y\":-296}'\u003eShaft seals\u003c\/li\u003e\n\u003cli bis_size='{\"x\":52,\"y\":217,\"w\":520,\"h\":19,\"abs_x\":661,\"abs_y\":-277}'\u003eBearings (where applicable)\u003c\/li\u003e\n\u003cli bis_size='{\"x\":52,\"y\":237,\"w\":520,\"h\":19,\"abs_x\":661,\"abs_y\":-257}'\u003eAll necessary hardware and seals\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp dir=\"auto\" style=\"white-space: pre-wrap;\" bis_size='{\"x\":12,\"y\":271,\"w\":560,\"h\":39,\"abs_x\":621,\"abs_y\":-223}'\u003eGenuine Welch factory OEM repair kit. Please contact your Chemtech Scientific Vacuum Pump Expert for individual parts.\u003c\/p\u003e\n\u003cp dir=\"auto\" style=\"white-space: pre-wrap;\" bis_size='{\"x\":12,\"y\":326,\"w\":560,\"h\":58,\"abs_x\":621,\"abs_y\":-168}'\u003eRegular use of the 1397K-08 Major Repair Kit helps maintain optimal vacuum levels, reduces noise and vibration, and prevents costly downtime. It is especially recommended after 8,000–12,000 hours of operation or when performance drops.\u003c\/p\u003e\n\u003cp dir=\"auto\" style=\"white-space: pre-wrap;\" bis_size='{\"x\":12,\"y\":401,\"w\":560,\"h\":39,\"abs_x\":621,\"abs_y\":-93}'\u003eKeep your Welch DUOSEAL pumps running at peak efficiency with genuine OEM parts from Chemtech Scientific.\u003c\/p\u003e\n\u003cp dir=\"auto\" style=\"white-space: pre-wrap;\" bis_size='{\"x\":12,\"y\":456,\"w\":560,\"h\":19,\"abs_x\":621,\"abs_y\":-38}'\u003e\u003cstrong bis_size='{\"x\":12,\"y\":456,\"w\":188,\"h\":19,\"abs_x\":621,\"abs_y\":-38}'\u003eNeed installation assistance?\u003c\/strong\u003e Email \u003cstrong bis_size='{\"x\":240,\"y\":456,\"w\":177,\"h\":19,\"abs_x\":849,\"abs_y\":-38}'\u003e\u003ca href=\"mailto:support@chemtechsci.com\" rel=\"noopener noreferrer nofollow\" bis_size='{\"x\":240,\"y\":456,\"w\":177,\"h\":19,\"abs_x\":849,\"abs_y\":-38}' target=\"_blank\"\u003esupport@chemtechsci.com\u003c\/a\u003e\u003c\/strong\u003e or call \u003cstrong bis_size='{\"x\":463,\"y\":456,\"w\":100,\"h\":19,\"abs_x\":1072,\"abs_y\":-38}'\u003e(484) 424-9415\u003c\/strong\u003e.\u003c\/p\u003e\n\u003ch2 bis_size='{\"x\":12,\"y\":491,\"w\":560,\"h\":58,\"abs_x\":621,\"abs_y\":-3}'\u003e\u003cspan style=\"color: #2b00ff;\" bis_size='{\"x\":12,\"y\":491,\"w\":512,\"h\":57,\"abs_x\":621,\"abs_y\":-3}'\u003e\u003ca style=\"color: #2b00ff;\" title=\"Welch 1397K-08 MAJOR REPAIR_KIT for 1397 and 1374 Vacuum_Pump\" href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0755\/2467\/files\/Welch_1397K_08_MAJOR_REPAIR_KIT_for_1397_and_1374_Vacuum_Pump.pdf?v=1585256220\" rel=\"noopener noreferrer\" bis_size='{\"x\":12,\"y\":491,\"w\":512,\"h\":57,\"abs_x\":621,\"abs_y\":-3}' target=\"_blank\"\u003e\u003cstrong bis_size='{\"x\":12,\"y\":491,\"w\":512,\"h\":57,\"abs_x\":621,\"abs_y\":-3}'\u003eWelch 1397K‐08 MAJOR REPAIR KIT, for 1397 and 1374 Vacuum Pump.pdf\u003c\/strong\u003e\u003c\/a\u003e\u003c\/span\u003e\u003c\/h2\u003e","brand":"Welch","offers":[{"title":"Default Title","offer_id":1162473116,"sku":"1397K-08","price":973.8,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0755\/2467\/products\/welch-1397k-08-major-repair-kit-for-1397-and-1374-vacuum-pump-16902324320.png?v=1779794294"},{"product_id":"welch-1397k-07-minor-repair-kit-for-1397-and-1374-vacuum-pump","title":"Welch 1397K‐07, MINOR REPAIR KIT, for 1397 and 1374 Vacuum Pump","description":"\u003cp dir=\"auto\" style=\"white-space: pre-wrap;\" bis_size='{\"x\":12,\"y\":9,\"w\":560,\"h\":78,\"abs_x\":621,\"abs_y\":-129}'\u003eThe Welch 1397K‐07 Minor Repair Kit is a genuine OEM maintenance kit designed for the Welch 1397 and 1374 DUOSEAL rotary vane vacuum pumps. This kit provides all essential components needed for routine minor repairs and preventive maintenance, helping restore pump performance and extend service life.\u003c\/p\u003e\n\u003cp dir=\"auto\" style=\"white-space: pre-wrap;\" bis_size='{\"x\":12,\"y\":103,\"w\":560,\"h\":39,\"abs_x\":621,\"abs_y\":-35}'\u003eNote: This minor kit does not include vanes (blades). Vanes are only included in the Major Repair Kit (1397K-08).\u003c\/p\u003e\n\u003cp dir=\"auto\" style=\"white-space: pre-wrap;\" bis_size='{\"x\":12,\"y\":159,\"w\":560,\"h\":19,\"abs_x\":621,\"abs_y\":21}'\u003e\u003cstrong bis_size='{\"x\":12,\"y\":159,\"w\":84,\"h\":19,\"abs_x\":621,\"abs_y\":21}'\u003eKit Contents:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul dir=\"auto\" bis_size='{\"x\":12,\"y\":194,\"w\":560,\"h\":78,\"abs_x\":621,\"abs_y\":56}'\u003e\n\u003cli bis_size='{\"x\":52,\"y\":194,\"w\":520,\"h\":19,\"abs_x\":661,\"abs_y\":56}'\u003eValve springs\u003c\/li\u003e\n\u003cli bis_size='{\"x\":52,\"y\":214,\"w\":520,\"h\":19,\"abs_x\":661,\"abs_y\":76}'\u003eGaskets and O-rings\u003c\/li\u003e\n\u003cli bis_size='{\"x\":52,\"y\":233,\"w\":520,\"h\":19,\"abs_x\":661,\"abs_y\":95}'\u003eShaft seals\u003c\/li\u003e\n\u003cli bis_size='{\"x\":52,\"y\":253,\"w\":520,\"h\":19,\"abs_x\":661,\"abs_y\":115}'\u003eNecessary hardware\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp dir=\"auto\" style=\"white-space: pre-wrap;\" bis_size='{\"x\":12,\"y\":287,\"w\":560,\"h\":39,\"abs_x\":621,\"abs_y\":149}'\u003eGenuine Welch factory OEM repair kit. Please contact your Chemtech Scientific Vacuum Pump Expert for individual parts.\u003c\/p\u003e\n\u003cp dir=\"auto\" style=\"white-space: pre-wrap;\" bis_size='{\"x\":12,\"y\":342,\"w\":560,\"h\":58,\"abs_x\":621,\"abs_y\":204}'\u003eIdeal for pumps showing early signs of wear or after 4,000–6,000 hours of operation. Regular use of the 1397K-07 Minor Repair Kit helps maintain optimal vacuum levels, reduces noise and vibration, and prevents more costly major repairs.\u003c\/p\u003e\n\u003cp dir=\"auto\" style=\"white-space: pre-wrap;\" bis_size='{\"x\":12,\"y\":417,\"w\":560,\"h\":39,\"abs_x\":621,\"abs_y\":279}'\u003eKeep your Welch 1397 and 1374 pumps operating at peak efficiency with authentic Welch parts from Chemtech Scientific.\u003c\/p\u003e\n\u003cp dir=\"auto\" style=\"white-space: pre-wrap;\" bis_size='{\"x\":12,\"y\":472,\"w\":560,\"h\":39,\"abs_x\":621,\"abs_y\":334}'\u003e\u003cstrong bis_size='{\"x\":12,\"y\":472,\"w\":312,\"h\":19,\"abs_x\":621,\"abs_y\":334}'\u003eNeed installation guidance or major repair kits?\u003c\/strong\u003e Email \u003cstrong bis_size='{\"x\":365,\"y\":472,\"w\":177,\"h\":19,\"abs_x\":974,\"abs_y\":334}'\u003e\u003ca href=\"mailto:support@chemtechsci.com\" rel=\"noopener noreferrer nofollow\" bis_size='{\"x\":365,\"y\":472,\"w\":177,\"h\":19,\"abs_x\":974,\"abs_y\":334}' target=\"_blank\"\u003esupport@chemtechsci.com\u003c\/a\u003e\u003c\/strong\u003e or call \u003cstrong bis_size='{\"x\":36,\"y\":491,\"w\":100,\"h\":19,\"abs_x\":645,\"abs_y\":353}'\u003e(484) 424-9415\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cp style=\"text-align: left;\" bis_size='{\"x\":12,\"y\":527,\"w\":560,\"h\":19,\"abs_x\":621,\"abs_y\":389}'\u003e \u003ca title=\"Welch 1397K‐07 MINOR REPAIR KIT, for 1397 and 1374 Vacuum Pump\" href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0755\/2467\/files\/WELCH_MINOR_REPAIR_KIT_for_1397_and_1374_Vacuum_Pump-2.pdf?v=1592765689\" rel=\"noopener noreferrer\" bis_size='{\"x\":15,\"y\":527,\"w\":462,\"h\":19,\"abs_x\":624,\"abs_y\":389}' target=\"_blank\"\u003e\u003cstrong bis_size='{\"x\":15,\"y\":527,\"w\":462,\"h\":19,\"abs_x\":624,\"abs_y\":389}'\u003e\u003cspan class=\"page-title\" bis_size='{\"x\":15,\"y\":527,\"w\":462,\"h\":19,\"abs_x\":624,\"abs_y\":389}'\u003eWelch 1397K‐07 MINOR REPAIR KIT, for 1397 and 1374 Vacuum Pump\u003c\/span\u003e\u003c\/strong\u003e\u003c\/a\u003e\u003c\/p\u003e\n\u003cp bis_size='{\"x\":12,\"y\":563,\"w\":560,\"h\":19,\"abs_x\":621,\"abs_y\":425}'\u003e \u003c\/p\u003e","brand":"Welch","offers":[{"title":"Default Title","offer_id":1164853488,"sku":null,"price":695.7,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0755\/2467\/products\/welch-1397k-07-minor-repair-kit-for-1397-and-1374-vacuum-pump-25489761206421.jpg?v=1779796175"},{"product_id":"welch-1376k-06-major-repair-kit-for-1376-vacuum-pump","title":"Welch 1376K-06 MAJOR REPAIR KIT, for 1376 Vacuum Pump","description":"\u003cp dir=\"auto\" style=\"white-space: pre-wrap;\"\u003eThe Welch 1376K-06 Major Repair Kit is a complete overhaul kit designed for the Welch 1376 DUOSEAL rotary vane vacuum pump. This kit contains all major components needed for a full rebuild, restoring your pump to peak performance and significantly extending its service life.\u003c\/p\u003e\n\u003cp dir=\"auto\" style=\"white-space: pre-wrap;\"\u003e\u003cstrong\u003eKit Contents:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul dir=\"auto\"\u003e\n\u003cli\u003eVanes (blades)\u003c\/li\u003e\n\u003cli\u003eValve springs and retainers\u003c\/li\u003e\n\u003cli\u003eGaskets and O-rings\u003c\/li\u003e\n\u003cli\u003eShaft seals\u003c\/li\u003e\n\u003cli\u003eBearings (where applicable)\u003c\/li\u003e\n\u003cli\u003eAll necessary hardware and seals\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp dir=\"auto\" style=\"white-space: pre-wrap;\"\u003eGenuine Welch factory OEM repair kit. Please contact your Chemtech Scientific Vacuum Pump Expert for individual parts.\u003c\/p\u003e\n\u003cp dir=\"auto\" style=\"white-space: pre-wrap;\"\u003eIdeal for pumps that have high operating hours, reduced vacuum performance, increased noise, or oil leaks. Recommended after 8,000–12,000 hours of use. Regular major repairs help maintain optimal vacuum levels, reduce vibration, and prevent costly downtime.\u003c\/p\u003e\n\u003cp dir=\"auto\" style=\"white-space: pre-wrap;\"\u003eKeep your Welch 1376 vacuum pump running at maximum efficiency with authentic Welch parts from Chemtech Scientific. Easy to install with basic tools.\u003c\/p\u003e\n\u003cp dir=\"auto\" style=\"white-space: pre-wrap;\"\u003e\u003cstrong\u003eNeed installation guidance or other kits?\u003c\/strong\u003e Email \u003cstrong\u003e\u003ca href=\"mailto:support@chemtechsci.com\" target=\"_blank\" rel=\"noopener noreferrer nofollow\"\u003esupport@chemtechsci.com\u003c\/a\u003e\u003c\/strong\u003e or call \u003cstrong\u003e(484) 424-9415\u003c\/strong\u003e.\u003c\/p\u003e","brand":"Welch","offers":[{"title":"Default Title","offer_id":1164881276,"sku":null,"price":844.2,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0755\/2467\/products\/welch-1376k-06-major-repair-kit-for-1376-vacuum-pump-25494056501397.jpg?v=1779793893"},{"product_id":"welch-1376k-05-minor-repair-kit-for-1376-vacuum-pump","title":"Welch 1376K-05 MINOR REPAIR KIT, for 1376 Vacuum Pump","description":"\u003cp dir=\"auto\" style=\"white-space: pre-wrap;\" bis_size='{\"x\":0,\"y\":0,\"w\":0,\"h\":0,\"abs_x\":0,\"abs_y\":0}'\u003eThe Welch 1376K-05 Minor Repair Kit is a genuine OEM maintenance kit designed specifically for the Welch 1376 DUOSEAL rotary vane vacuum pump. This kit provides all essential components needed for routine minor repairs and preventive maintenance, helping restore performance and extend the life of your pump.\u003c\/p\u003e\n\u003cp dir=\"auto\" style=\"white-space: pre-wrap;\" bis_size='{\"x\":0,\"y\":0,\"w\":0,\"h\":0,\"abs_x\":0,\"abs_y\":0}'\u003e\u003cstrong bis_size='{\"x\":0,\"y\":0,\"w\":0,\"h\":0,\"abs_x\":0,\"abs_y\":0}'\u003eNote:\u003c\/strong\u003e This minor kit does \u003cstrong bis_size='{\"x\":0,\"y\":0,\"w\":0,\"h\":0,\"abs_x\":0,\"abs_y\":0}'\u003enot\u003c\/strong\u003e include vanes (blades). Vanes are only included in the Major Repair Kit (1376K-06).\u003c\/p\u003e\n\u003cp dir=\"auto\" style=\"white-space: pre-wrap;\" bis_size='{\"x\":0,\"y\":0,\"w\":0,\"h\":0,\"abs_x\":0,\"abs_y\":0}'\u003e\u003cstrong bis_size='{\"x\":0,\"y\":0,\"w\":0,\"h\":0,\"abs_x\":0,\"abs_y\":0}'\u003eKit Contents:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul dir=\"auto\" bis_size='{\"x\":0,\"y\":0,\"w\":0,\"h\":0,\"abs_x\":0,\"abs_y\":0}'\u003e\n\u003cli bis_size='{\"x\":0,\"y\":0,\"w\":0,\"h\":0,\"abs_x\":0,\"abs_y\":0}'\u003eValve springs\u003c\/li\u003e\n\u003cli bis_size='{\"x\":0,\"y\":0,\"w\":0,\"h\":0,\"abs_x\":0,\"abs_y\":0}'\u003eGaskets and O-rings\u003c\/li\u003e\n\u003cli bis_size='{\"x\":0,\"y\":0,\"w\":0,\"h\":0,\"abs_x\":0,\"abs_y\":0}'\u003eShaft seals\u003c\/li\u003e\n\u003cli bis_size='{\"x\":0,\"y\":0,\"w\":0,\"h\":0,\"abs_x\":0,\"abs_y\":0}'\u003eNecessary hardware\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp dir=\"auto\" style=\"white-space: pre-wrap;\" bis_size='{\"x\":0,\"y\":0,\"w\":0,\"h\":0,\"abs_x\":0,\"abs_y\":0}'\u003eGenuine Welch factory OEM repair kit. Please contact your Chemtech Scientific Vacuum Pump Expert for individual parts.\u003c\/p\u003e\n\u003cp dir=\"auto\" style=\"white-space: pre-wrap;\" bis_size='{\"x\":0,\"y\":0,\"w\":0,\"h\":0,\"abs_x\":0,\"abs_y\":0}'\u003eIdeal for pumps showing early signs of wear or after 4,000–6,000 hours of operation. Regular use of the 1376K-05 Minor Repair Kit helps maintain optimal vacuum levels, reduces noise and vibration, and prevents more costly major repairs. Easy to install with basic tools.\u003c\/p\u003e\n\u003cp dir=\"auto\" style=\"white-space: pre-wrap;\" bis_size='{\"x\":0,\"y\":0,\"w\":0,\"h\":0,\"abs_x\":0,\"abs_y\":0}'\u003eKeep your Welch 1376 vacuum pump running efficiently with authentic parts from Chemtech Scientific.\u003c\/p\u003e\n\u003cp dir=\"auto\" style=\"white-space: pre-wrap;\" bis_size='{\"x\":0,\"y\":0,\"w\":0,\"h\":0,\"abs_x\":0,\"abs_y\":0}'\u003e\u003cstrong bis_size='{\"x\":0,\"y\":0,\"w\":0,\"h\":0,\"abs_x\":0,\"abs_y\":0}'\u003eNeed a Major Repair Kit or installation help?\u003c\/strong\u003e Email \u003cstrong bis_size='{\"x\":0,\"y\":0,\"w\":0,\"h\":0,\"abs_x\":0,\"abs_y\":0}'\u003e\u003ca href=\"mailto:support@chemtechsci.com\" rel=\"noopener noreferrer nofollow\" bis_size='{\"x\":0,\"y\":0,\"w\":0,\"h\":0,\"abs_x\":0,\"abs_y\":0}' target=\"_blank\"\u003esupport@chemtechsci.com\u003c\/a\u003e\u003c\/strong\u003e or call \u003cstrong bis_size='{\"x\":0,\"y\":0,\"w\":0,\"h\":0,\"abs_x\":0,\"abs_y\":0}'\u003e(484) 424-9415\u003c\/strong\u003e.\u003c\/p\u003e","brand":"Welch","offers":[{"title":"Default Title","offer_id":1164908852,"sku":null,"price":384.3,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0755\/2467\/products\/welch-1376k-05-minor-repair-kit-for-1376-vacuum-pump-17007542368.png?v=1779796783"},{"product_id":"welch-1380k-04-major-repair-kit-for-1380-vacuum-pump","title":"Welch 1380K-04, MAJOR REPAIR KIT, for 1380 Vacuum Pump","description":"\u003cp dir=\"auto\" style=\"white-space: pre-wrap;\" bis_size='{\"x\":12,\"y\":9,\"w\":560,\"h\":78,\"abs_x\":621,\"abs_y\":271}'\u003eThe Welch 1380K-04 Major Repair Kit is a complete overhaul kit designed for the Welch 1380 DUOSEAL rotary vane vacuum pump. This high-quality kit includes all major components needed for a full rebuild, restoring your pump to like-new performance and significantly extending its service life.\u003c\/p\u003e\n\u003cp dir=\"auto\" style=\"white-space: pre-wrap;\" bis_size='{\"x\":12,\"y\":103,\"w\":560,\"h\":19,\"abs_x\":621,\"abs_y\":365}'\u003e\u003cstrong bis_size='{\"x\":12,\"y\":103,\"w\":84,\"h\":19,\"abs_x\":621,\"abs_y\":365}'\u003eKit Contents:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul dir=\"auto\" bis_size='{\"x\":12,\"y\":139,\"w\":560,\"h\":117,\"abs_x\":621,\"abs_y\":401}'\u003e\n\u003cli bis_size='{\"x\":52,\"y\":139,\"w\":520,\"h\":19,\"abs_x\":661,\"abs_y\":401}'\u003eVanes (blades)\u003c\/li\u003e\n\u003cli bis_size='{\"x\":52,\"y\":159,\"w\":520,\"h\":19,\"abs_x\":661,\"abs_y\":421}'\u003eValve springs and retainers\u003c\/li\u003e\n\u003cli bis_size='{\"x\":52,\"y\":178,\"w\":520,\"h\":19,\"abs_x\":661,\"abs_y\":440}'\u003eGaskets and O-rings\u003c\/li\u003e\n\u003cli bis_size='{\"x\":52,\"y\":198,\"w\":520,\"h\":19,\"abs_x\":661,\"abs_y\":460}'\u003eShaft seals\u003c\/li\u003e\n\u003cli bis_size='{\"x\":52,\"y\":217,\"w\":520,\"h\":19,\"abs_x\":661,\"abs_y\":479}'\u003eBearings (where applicable)\u003c\/li\u003e\n\u003cli bis_size='{\"x\":52,\"y\":237,\"w\":520,\"h\":19,\"abs_x\":661,\"abs_y\":499}'\u003eAll necessary hardware and seals\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp dir=\"auto\" style=\"white-space: pre-wrap;\" bis_size='{\"x\":12,\"y\":271,\"w\":560,\"h\":39,\"abs_x\":621,\"abs_y\":533}'\u003eGenuine Welch factory OEM repair kit. Please contact your Chemtech Scientific Vacuum Pump Expert for individual parts.\u003c\/p\u003e\n\u003cp dir=\"auto\" style=\"white-space: pre-wrap;\" bis_size='{\"x\":12,\"y\":326,\"w\":560,\"h\":58,\"abs_x\":621,\"abs_y\":588}'\u003eIdeal for pumps with high operating hours, reduced vacuum performance, increased noise, or oil leaks. Recommended after 8,000–12,000 hours of use. Regular major repairs help maintain optimal vacuum levels, reduce vibration, and prevent costly downtime.\u003c\/p\u003e\n\u003cp dir=\"auto\" style=\"white-space: pre-wrap;\" bis_size='{\"x\":12,\"y\":401,\"w\":560,\"h\":39,\"abs_x\":621,\"abs_y\":663}'\u003eKeep your Welch 1380 vacuum pump running at peak efficiency with authentic Welch parts from Chemtech Scientific. Easy to install with basic tools.\u003c\/p\u003e\n\u003cp dir=\"auto\" style=\"white-space: pre-wrap;\" bis_size='{\"x\":12,\"y\":456,\"w\":560,\"h\":19,\"abs_x\":621,\"abs_y\":718}'\u003e\u003cstrong bis_size='{\"x\":12,\"y\":456,\"w\":182,\"h\":19,\"abs_x\":621,\"abs_y\":718}'\u003eNeed installation guidance?\u003c\/strong\u003e Email \u003cstrong bis_size='{\"x\":235,\"y\":456,\"w\":177,\"h\":19,\"abs_x\":844,\"abs_y\":718}'\u003e\u003ca href=\"mailto:support@chemtechsci.com\" rel=\"noopener noreferrer nofollow\" bis_size='{\"x\":235,\"y\":456,\"w\":177,\"h\":19,\"abs_x\":844,\"abs_y\":718}' target=\"_blank\"\u003esupport@chemtechsci.com\u003c\/a\u003e\u003c\/strong\u003e or call \u003cstrong bis_size='{\"x\":457,\"y\":456,\"w\":100,\"h\":19,\"abs_x\":1066,\"abs_y\":718}'\u003e(484) 424-9415\u003c\/strong\u003e.\u003c\/p\u003e","brand":"Welch","offers":[{"title":"Default Title","offer_id":1164918156,"sku":null,"price":585.9,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0755\/2467\/products\/welch-1380k-04-major-repair-kit-for-1380-vacuum-pump-25489869734037.jpg?v=1779794302"},{"product_id":"welch-1380k-03-minor-repair-kit-for-1380-vacuum-pump","title":"Welch 1380K-03, MINOR REPAIR KIT, for 1380 Vacuum Pump","description":"\u003cp dir=\"auto\" style=\"white-space: pre-wrap;\" bis_size='{\"x\":12,\"y\":9,\"w\":560,\"h\":78,\"abs_x\":621,\"abs_y\":271}'\u003eThe Welch 1380K-03 Minor Repair Kit is a genuine OEM maintenance kit designed for the Welch 1380 DUOSEAL rotary vane vacuum pump. This kit provides essential components for routine minor repairs and preventive maintenance, helping restore performance and extend pump life.\u003c\/p\u003e\n\u003cp dir=\"auto\" style=\"white-space: pre-wrap;\" bis_size='{\"x\":12,\"y\":103,\"w\":560,\"h\":39,\"abs_x\":621,\"abs_y\":365}'\u003e\u003cstrong bis_size='{\"x\":12,\"y\":103,\"w\":36,\"h\":19,\"abs_x\":621,\"abs_y\":365}'\u003eNote:\u003c\/strong\u003e This minor kit does \u003cstrong bis_size='{\"x\":173,\"y\":103,\"w\":22,\"h\":19,\"abs_x\":782,\"abs_y\":365}'\u003enot\u003c\/strong\u003e include vanes (blades). Vanes are only included in the Major Repair Kit (1380K-04).\u003c\/p\u003e\n\u003cp dir=\"auto\" style=\"white-space: pre-wrap;\" bis_size='{\"x\":12,\"y\":159,\"w\":560,\"h\":19,\"abs_x\":621,\"abs_y\":421}'\u003e\u003cstrong bis_size='{\"x\":12,\"y\":159,\"w\":84,\"h\":19,\"abs_x\":621,\"abs_y\":421}'\u003eKit Contents:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul dir=\"auto\" bis_size='{\"x\":12,\"y\":194,\"w\":560,\"h\":78,\"abs_x\":621,\"abs_y\":456}'\u003e\n\u003cli bis_size='{\"x\":52,\"y\":194,\"w\":520,\"h\":19,\"abs_x\":661,\"abs_y\":456}'\u003eValve springs\u003c\/li\u003e\n\u003cli bis_size='{\"x\":52,\"y\":214,\"w\":520,\"h\":19,\"abs_x\":661,\"abs_y\":476}'\u003eGaskets and O-rings\u003c\/li\u003e\n\u003cli bis_size='{\"x\":52,\"y\":233,\"w\":520,\"h\":19,\"abs_x\":661,\"abs_y\":495}'\u003eShaft seals\u003c\/li\u003e\n\u003cli bis_size='{\"x\":52,\"y\":253,\"w\":520,\"h\":19,\"abs_x\":661,\"abs_y\":515}'\u003eNecessary hardware\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp dir=\"auto\" style=\"white-space: pre-wrap;\" bis_size='{\"x\":12,\"y\":287,\"w\":560,\"h\":39,\"abs_x\":621,\"abs_y\":549}'\u003eGenuine Welch factory OEM repair kit. Please contact your Chemtech Scientific Vacuum Pump Expert for individual parts.\u003c\/p\u003e\n\u003cp dir=\"auto\" style=\"white-space: pre-wrap;\" bis_size='{\"x\":12,\"y\":342,\"w\":560,\"h\":78,\"abs_x\":621,\"abs_y\":604}'\u003eIdeal for pumps showing early signs of wear or after 4,000–6,000 hours of operation. Regular use of the 1380K-03 Minor Repair Kit helps maintain optimal vacuum levels, reduces noise and vibration, and prevents more costly major repairs. Easy to install with basic tools.\u003c\/p\u003e\n\u003cp dir=\"auto\" style=\"white-space: pre-wrap;\" bis_size='{\"x\":12,\"y\":436,\"w\":560,\"h\":39,\"abs_x\":621,\"abs_y\":698}'\u003eKeep your Welch 1380 vacuum pump running efficiently with authentic parts from Chemtech Scientific.\u003c\/p\u003e\n\u003cp dir=\"auto\" style=\"white-space: pre-wrap;\" bis_size='{\"x\":12,\"y\":491,\"w\":560,\"h\":39,\"abs_x\":621,\"abs_y\":753}'\u003e\u003cstrong bis_size='{\"x\":12,\"y\":491,\"w\":291,\"h\":19,\"abs_x\":621,\"abs_y\":753}'\u003eNeed a Major Repair Kit or installation help?\u003c\/strong\u003e Email \u003cstrong bis_size='{\"x\":344,\"y\":491,\"w\":177,\"h\":19,\"abs_x\":953,\"abs_y\":753}'\u003e\u003ca href=\"mailto:support@chemtechsci.com\" rel=\"noopener noreferrer nofollow\" bis_size='{\"x\":344,\"y\":491,\"w\":177,\"h\":19,\"abs_x\":953,\"abs_y\":753}' target=\"_blank\"\u003esupport@chemtechsci.com\u003c\/a\u003e\u003c\/strong\u003e or call \u003cstrong bis_size='{\"x\":12,\"y\":511,\"w\":100,\"h\":19,\"abs_x\":621,\"abs_y\":773}'\u003e(484) 424-9415\u003c\/strong\u003e.\u003c\/p\u003e","brand":"Welch","offers":[{"title":"Default Title","offer_id":1164920748,"sku":null,"price":336.6,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0755\/2467\/products\/welch-1380k-03-minor-repair-kit-for-1380-vacuum-pump-25489875337365.jpg?v=1779796786"},{"product_id":"welch-1399k-04-major-repair-kit-for-1399-vacuum-pump","title":"Welch 1399K-04, MAJOR REPAIR KIT, for 1399 Vacuum Pump","description":"\u003cp dir=\"auto\" style=\"white-space: pre-wrap;\" bis_size='{\"x\":12,\"y\":9,\"w\":560,\"h\":78,\"abs_x\":621,\"abs_y\":-129}'\u003eThe Welch 1399K-04 Major Repair Kit is a complete overhaul kit designed for the Welch 1399 DUOSEAL rotary vane vacuum pump. This high-quality kit includes all major components needed for a full rebuild, restoring your pump to like-new performance and significantly extending its service life.\u003c\/p\u003e\n\u003cp dir=\"auto\" style=\"white-space: pre-wrap;\" bis_size='{\"x\":12,\"y\":103,\"w\":560,\"h\":19,\"abs_x\":621,\"abs_y\":-35}'\u003e\u003cstrong bis_size='{\"x\":12,\"y\":103,\"w\":84,\"h\":19,\"abs_x\":621,\"abs_y\":-35}'\u003eKit Contents:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul dir=\"auto\" bis_size='{\"x\":12,\"y\":139,\"w\":560,\"h\":117,\"abs_x\":621,\"abs_y\":1}'\u003e\n\u003cli bis_size='{\"x\":52,\"y\":139,\"w\":520,\"h\":19,\"abs_x\":661,\"abs_y\":1}'\u003eVanes (blades)\u003c\/li\u003e\n\u003cli bis_size='{\"x\":52,\"y\":159,\"w\":520,\"h\":19,\"abs_x\":661,\"abs_y\":21}'\u003eValve springs and retainers\u003c\/li\u003e\n\u003cli bis_size='{\"x\":52,\"y\":178,\"w\":520,\"h\":19,\"abs_x\":661,\"abs_y\":40}'\u003eGaskets and O-rings\u003c\/li\u003e\n\u003cli bis_size='{\"x\":52,\"y\":198,\"w\":520,\"h\":19,\"abs_x\":661,\"abs_y\":60}'\u003eShaft seals\u003c\/li\u003e\n\u003cli bis_size='{\"x\":52,\"y\":217,\"w\":520,\"h\":19,\"abs_x\":661,\"abs_y\":79}'\u003eBearings (where applicable)\u003c\/li\u003e\n\u003cli bis_size='{\"x\":52,\"y\":237,\"w\":520,\"h\":19,\"abs_x\":661,\"abs_y\":99}'\u003eAll necessary hardware and seals\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp dir=\"auto\" style=\"white-space: pre-wrap;\" bis_size='{\"x\":12,\"y\":271,\"w\":560,\"h\":39,\"abs_x\":621,\"abs_y\":133}'\u003eGenuine Welch factory OEM repair kit. Please contact your Chemtech Scientific Vacuum Pump Expert for individual parts.\u003c\/p\u003e\n\u003cp dir=\"auto\" style=\"white-space: pre-wrap;\" bis_size='{\"x\":12,\"y\":326,\"w\":560,\"h\":58,\"abs_x\":621,\"abs_y\":188}'\u003eIdeal for pumps with high operating hours, reduced vacuum performance, increased noise, or oil leaks. Recommended after 8,000–12,000 hours of use. Regular major repairs help maintain optimal vacuum levels, reduce vibration, and prevent costly downtime.\u003c\/p\u003e\n\u003cp dir=\"auto\" style=\"white-space: pre-wrap;\" bis_size='{\"x\":12,\"y\":401,\"w\":560,\"h\":39,\"abs_x\":621,\"abs_y\":263}'\u003eKeep your Welch 1399 vacuum pump running at peak efficiency with authentic Welch parts from Chemtech Scientific. Easy to install with basic tools.\u003c\/p\u003e\n\u003cp dir=\"auto\" style=\"white-space: pre-wrap;\" bis_size='{\"x\":12,\"y\":456,\"w\":560,\"h\":39,\"abs_x\":621,\"abs_y\":318}'\u003e\u003cstrong bis_size='{\"x\":12,\"y\":456,\"w\":267,\"h\":19,\"abs_x\":621,\"abs_y\":318}'\u003eNeed installation guidance or other kits?\u003c\/strong\u003e Email \u003cstrong bis_size='{\"x\":319,\"y\":456,\"w\":177,\"h\":19,\"abs_x\":928,\"abs_y\":318}'\u003e\u003ca href=\"mailto:support@chemtechsci.com\" rel=\"noopener noreferrer nofollow\" bis_size='{\"x\":319,\"y\":456,\"w\":177,\"h\":19,\"abs_x\":928,\"abs_y\":318}' target=\"_blank\"\u003esupport@chemtechsci.com\u003c\/a\u003e\u003c\/strong\u003e or call \u003cstrong bis_size='{\"x\":12,\"y\":475,\"w\":100,\"h\":19,\"abs_x\":621,\"abs_y\":337}'\u003e(484) 424-9415\u003c\/strong\u003e.\u003c\/p\u003e","brand":"Welch","offers":[{"title":"Default Title","offer_id":1164928592,"sku":"","price":410.4,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0755\/2467\/products\/welch-1399k-04-major-repair-kit-for-1399-vacuum-pump-25489728929941.jpg?v=1779796786"},{"product_id":"welch-1399k-03-minor-repair-kit-for-1399-vacuum-pump","title":"Welch 1399K-03, MINOR REPAIR KIT, for 1399 Vacuum Pump","description":"\u003cp dir=\"auto\" style=\"white-space: pre-wrap;\" bis_size='{\"x\":12,\"y\":9,\"w\":560,\"h\":78,\"abs_x\":621,\"abs_y\":271}'\u003eThe Welch 1399K-03 Minor Repair Kit is a genuine OEM maintenance kit designed for the Welch 1399 DUOSEAL rotary vane vacuum pump. This kit provides essential components for routine minor repairs and preventive maintenance, helping restore performance and extend pump life.\u003c\/p\u003e\n\u003cp dir=\"auto\" style=\"white-space: pre-wrap;\" bis_size='{\"x\":12,\"y\":103,\"w\":560,\"h\":39,\"abs_x\":621,\"abs_y\":365}'\u003e\u003cstrong bis_size='{\"x\":12,\"y\":103,\"w\":36,\"h\":19,\"abs_x\":621,\"abs_y\":365}'\u003eNote:\u003c\/strong\u003e This minor kit does \u003cstrong bis_size='{\"x\":173,\"y\":103,\"w\":22,\"h\":19,\"abs_x\":782,\"abs_y\":365}'\u003enot\u003c\/strong\u003e include vanes (blades). Vanes are only included in the Major Repair Kit (1399K-04).\u003c\/p\u003e\n\u003cp dir=\"auto\" style=\"white-space: pre-wrap;\" bis_size='{\"x\":12,\"y\":159,\"w\":560,\"h\":19,\"abs_x\":621,\"abs_y\":421}'\u003e\u003cstrong bis_size='{\"x\":12,\"y\":159,\"w\":84,\"h\":19,\"abs_x\":621,\"abs_y\":421}'\u003eKit Contents:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul dir=\"auto\" bis_size='{\"x\":12,\"y\":194,\"w\":560,\"h\":78,\"abs_x\":621,\"abs_y\":456}'\u003e\n\u003cli bis_size='{\"x\":52,\"y\":194,\"w\":520,\"h\":19,\"abs_x\":661,\"abs_y\":456}'\u003eValve springs\u003c\/li\u003e\n\u003cli bis_size='{\"x\":52,\"y\":214,\"w\":520,\"h\":19,\"abs_x\":661,\"abs_y\":476}'\u003eGaskets and O-rings\u003c\/li\u003e\n\u003cli bis_size='{\"x\":52,\"y\":233,\"w\":520,\"h\":19,\"abs_x\":661,\"abs_y\":495}'\u003eShaft seals\u003c\/li\u003e\n\u003cli bis_size='{\"x\":52,\"y\":253,\"w\":520,\"h\":19,\"abs_x\":661,\"abs_y\":515}'\u003eNecessary hardware\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp dir=\"auto\" style=\"white-space: pre-wrap;\" bis_size='{\"x\":12,\"y\":287,\"w\":560,\"h\":39,\"abs_x\":621,\"abs_y\":549}'\u003eGenuine Welch factory OEM repair kit. Please contact your Chemtech Scientific Vacuum Pump Expert for individual parts.\u003c\/p\u003e\n\u003cp dir=\"auto\" style=\"white-space: pre-wrap;\" bis_size='{\"x\":12,\"y\":342,\"w\":560,\"h\":78,\"abs_x\":621,\"abs_y\":604}'\u003eIdeal for pumps showing early signs of wear or after 4,000–6,000 hours of operation. Regular use of the 1399K-03 Minor Repair Kit helps maintain optimal vacuum levels, reduces noise and vibration, and prevents more costly major repairs. Easy to install with basic tools.\u003c\/p\u003e\n\u003cp dir=\"auto\" style=\"white-space: pre-wrap;\" bis_size='{\"x\":12,\"y\":436,\"w\":560,\"h\":39,\"abs_x\":621,\"abs_y\":698}'\u003eKeep your Welch 1399 vacuum pump running efficiently with authentic parts from Chemtech Scientific.\u003c\/p\u003e\n\u003cp dir=\"auto\" style=\"white-space: pre-wrap;\" bis_size='{\"x\":12,\"y\":491,\"w\":560,\"h\":39,\"abs_x\":621,\"abs_y\":753}'\u003e\u003cstrong bis_size='{\"x\":12,\"y\":491,\"w\":291,\"h\":19,\"abs_x\":621,\"abs_y\":753}'\u003eNeed a Major Repair Kit or installation help?\u003c\/strong\u003e Email \u003cstrong bis_size='{\"x\":344,\"y\":491,\"w\":177,\"h\":19,\"abs_x\":953,\"abs_y\":753}'\u003e\u003ca href=\"mailto:support@chemtechsci.com\" rel=\"noopener noreferrer nofollow\" bis_size='{\"x\":344,\"y\":491,\"w\":177,\"h\":19,\"abs_x\":953,\"abs_y\":753}' target=\"_blank\"\u003esupport@chemtechsci.com\u003c\/a\u003e\u003c\/strong\u003e or call \u003cstrong bis_size='{\"x\":12,\"y\":511,\"w\":100,\"h\":19,\"abs_x\":621,\"abs_y\":773}'\u003e(484) 424-9415\u003c\/strong\u003e.\u003c\/p\u003e","brand":"Welch","offers":[{"title":"Default Title","offer_id":1164931272,"sku":null,"price":290.7,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0755\/2467\/products\/welch-1399k-03-minor-repair-kit-for-1399-vacuum-pump-25489735352469.jpg?v=1779793894"},{"product_id":"welch-1400k-04-major-repair-kit-for-1400-vacuum-pump","title":"Welch 1400K-04, MAJOR REPAIR KIT, for 1400 Vacuum Pump","description":"\u003cp dir=\"auto\" style=\"white-space: pre-wrap;\"\u003eThe Welch 1400K-04 Major Repair Kit is a complete overhaul kit designed for the Welch 1400 DUOSEAL rotary vane vacuum pump. This high-quality kit includes all major components needed for a full rebuild, restoring your pump to like-new performance and significantly extending its service life.\u003c\/p\u003e\n\u003cp dir=\"auto\" style=\"white-space: pre-wrap;\"\u003e\u003cstrong\u003eKit Contents:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul dir=\"auto\"\u003e\n\u003cli\u003eVanes (blades)\u003c\/li\u003e\n\u003cli\u003eValve springs and retainers\u003c\/li\u003e\n\u003cli\u003eGaskets and O-rings\u003c\/li\u003e\n\u003cli\u003eShaft seals\u003c\/li\u003e\n\u003cli\u003eBearings (where applicable)\u003c\/li\u003e\n\u003cli\u003eAll necessary hardware and seals\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003e\u003ca title=\"Welch 1400K-04 Major repair kit, for 1400 vacuum pump\" href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0755\/2467\/files\/Welch_1400K-04_MAJOR_REPAIR_KIT_for_1400_Vacuum_Pump.pdf?v=1592760762\" target=\"_blank\" rel=\"noopener noreferrer\"\u003eWelch 1400K-04 major repair kit, for 1400 vacuum pump\u003c\/a\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp dir=\"auto\" style=\"white-space: pre-wrap;\"\u003eGenuine Welch factory OEM repair kit. Please contact your Chemtech Scientific Vacuum Pump Expert for individual parts.\u003c\/p\u003e\n\u003cp dir=\"auto\" style=\"white-space: pre-wrap;\"\u003eIdeal for pumps with high operating hours, reduced vacuum performance, increased noise, or oil leaks. Recommended after 8,000–12,000 hours of use. Regular major repairs help maintain optimal vacuum levels, reduce vibration, and prevent costly downtime.\u003c\/p\u003e\n\u003cp dir=\"auto\" style=\"white-space: pre-wrap;\"\u003eKeep your Welch 1400 vacuum pump running at peak efficiency with authentic Welch parts from Chemtech Scientific. Easy to install with basic tools.\u003c\/p\u003e\n\u003cp dir=\"auto\" style=\"white-space: pre-wrap;\"\u003e\u003cstrong\u003eNeed guidance or other kits?\u003c\/strong\u003e Email \u003cstrong\u003e\u003ca href=\"mailto:support@chemtechsci.com\" target=\"_blank\" rel=\"noopener noreferrer nofollow\"\u003esupport@chemtechsci.com\u003c\/a\u003e\u003c\/strong\u003e or call \u003cstrong\u003e(484) 424-9415\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e","brand":"Welch","offers":[{"title":"Default Title","offer_id":1164933656,"sku":"1400K-04","price":450.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0755\/2467\/products\/welch-1400k-04-major-repair-kit-for-1400-vacuum-pump-25488008708245.jpg?v=1779794304"},{"product_id":"welch-1400k-03-minor-repair-kit-for-1400-vacuum-pump","title":"Welch 1400K-03, MINOR REPAIR KIT, for 1400 Vacuum Pump","description":"\u003cp dir=\"auto\" style=\"white-space: pre-wrap;\" bis_size='{\"x\":12,\"y\":9,\"w\":560,\"h\":78,\"abs_x\":621,\"abs_y\":271}'\u003eThe Welch 1400K-03 Minor Repair Kit is a genuine OEM maintenance kit designed for the Welch 1400 DUOSEAL rotary vane vacuum pump. This kit provides essential components for routine minor repairs and preventive maintenance, helping restore performance and extend pump life.\u003c\/p\u003e\n\u003cp dir=\"auto\" style=\"white-space: pre-wrap;\" bis_size='{\"x\":12,\"y\":103,\"w\":560,\"h\":39,\"abs_x\":621,\"abs_y\":365}'\u003e\u003cstrong bis_size='{\"x\":12,\"y\":103,\"w\":36,\"h\":19,\"abs_x\":621,\"abs_y\":365}'\u003eNote:\u003c\/strong\u003e This minor kit does \u003cstrong bis_size='{\"x\":173,\"y\":103,\"w\":22,\"h\":19,\"abs_x\":782,\"abs_y\":365}'\u003enot\u003c\/strong\u003e include vanes (blades). Vanes are only included in the Major Repair Kit (1400K-04).\u003c\/p\u003e\n\u003cp dir=\"auto\" style=\"white-space: pre-wrap;\" bis_size='{\"x\":12,\"y\":159,\"w\":560,\"h\":19,\"abs_x\":621,\"abs_y\":421}'\u003e\u003cstrong bis_size='{\"x\":12,\"y\":159,\"w\":84,\"h\":19,\"abs_x\":621,\"abs_y\":421}'\u003eKit Contents:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul dir=\"auto\" bis_size='{\"x\":12,\"y\":194,\"w\":560,\"h\":78,\"abs_x\":621,\"abs_y\":456}'\u003e\n\u003cli bis_size='{\"x\":52,\"y\":194,\"w\":520,\"h\":19,\"abs_x\":661,\"abs_y\":456}'\u003eValve springs\u003c\/li\u003e\n\u003cli bis_size='{\"x\":52,\"y\":214,\"w\":520,\"h\":19,\"abs_x\":661,\"abs_y\":476}'\u003eGaskets and O-rings\u003c\/li\u003e\n\u003cli bis_size='{\"x\":52,\"y\":233,\"w\":520,\"h\":19,\"abs_x\":661,\"abs_y\":495}'\u003eShaft seals\u003c\/li\u003e\n\u003cli bis_size='{\"x\":52,\"y\":253,\"w\":520,\"h\":19,\"abs_x\":661,\"abs_y\":515}'\u003eNecessary hardware\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp bis_size='{\"x\":12,\"y\":287,\"w\":560,\"h\":19,\"abs_x\":621,\"abs_y\":549}'\u003e\u003ca title=\"Welch 1400K-03 MINOR REPAIR KIT, for 1400 Vacuum Pump\" href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0755\/2467\/files\/Welch_1400K-04_MAJOR_REPAIR_KIT_for_1400_Vacuum_Pump.pdf?v=1592760762\" rel=\"noopener noreferrer\" bis_size='{\"x\":12,\"y\":287,\"w\":516,\"h\":19,\"abs_x\":621,\"abs_y\":549}' target=\"_blank\"\u003e\u003cstrong bis_size='{\"x\":12,\"y\":287,\"w\":516,\"h\":19,\"abs_x\":621,\"abs_y\":549}'\u003eExploded View of Welch 1400K-03 MINOR REPAIR KIT, for 1400 Vacuum Pump\u003c\/strong\u003e\u003c\/a\u003e\u003c\/p\u003e\n\u003cp dir=\"auto\" style=\"white-space: pre-wrap;\" bis_size='{\"x\":12,\"y\":322,\"w\":560,\"h\":39,\"abs_x\":621,\"abs_y\":584}'\u003eGenuine Welch factory OEM repair kit. Please contact your Chemtech Scientific Vacuum Pump Expert for individual parts.\u003c\/p\u003e\n\u003cp dir=\"auto\" style=\"white-space: pre-wrap;\" bis_size='{\"x\":12,\"y\":377,\"w\":560,\"h\":78,\"abs_x\":621,\"abs_y\":639}'\u003eIdeal for pumps showing early signs of wear or after 4,000–6,000 hours of operation. Regular use of the 1400K-03 Minor Repair Kit helps maintain optimal vacuum levels, reduces noise and vibration, and prevents more costly major repairs. Easy to install with basic tools.\u003c\/p\u003e\n\u003cp dir=\"auto\" style=\"white-space: pre-wrap;\" bis_size='{\"x\":12,\"y\":472,\"w\":560,\"h\":39,\"abs_x\":621,\"abs_y\":734}'\u003eKeep your Welch 1400 vacuum pump running efficiently with authentic parts from Chemtech Scientific.\u003c\/p\u003e\n\u003cp dir=\"auto\" style=\"white-space: pre-wrap;\" bis_size='{\"x\":12,\"y\":527,\"w\":560,\"h\":39,\"abs_x\":621,\"abs_y\":789}'\u003e\u003cstrong bis_size='{\"x\":12,\"y\":527,\"w\":214,\"h\":19,\"abs_x\":621,\"abs_y\":789}'\u003eNeed a Major Repair Kit or help?\u003c\/strong\u003e Email \u003cstrong bis_size='{\"x\":266,\"y\":527,\"w\":177,\"h\":19,\"abs_x\":875,\"abs_y\":789}'\u003e\u003ca href=\"mailto:support@chemtechsci.com\" rel=\"noopener noreferrer nofollow\" bis_size='{\"x\":266,\"y\":527,\"w\":177,\"h\":19,\"abs_x\":875,\"abs_y\":789}' target=\"_blank\"\u003esupport@chemtechsci.com\u003c\/a\u003e\u003c\/strong\u003e or call \u003cstrong bis_size='{\"x\":12,\"y\":527,\"w\":545,\"h\":38,\"abs_x\":621,\"abs_y\":789}'\u003e(484) 424-9415\u003c\/strong\u003e.\u003c\/p\u003e","brand":"Welch","offers":[{"title":"Default Title","offer_id":1164934860,"sku":null,"price":297.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0755\/2467\/products\/welch-1400k-03-minor-repair-kit-for-1400-vacuum-pump-25489691705493.jpg?v=1779794304"},{"product_id":"welch-1402k-06-major-repair-kit-for-1402-and-1405-vacuum-pump","title":"Welch 1402K-06 MAJOR REPAIR KIT, for 1402 and 1405 Vacuum Pump","description":"\u003cp dir=\"auto\" style=\"white-space: pre-wrap;\"\u003eThe Welch 1402K-06 Major Repair Kit is a complete overhaul kit designed for the Welch 1402 and 1405 DUOSEAL rotary vane vacuum pumps. This high-quality kit includes all major components needed for a full rebuild, restoring your pump to like-new performance and significantly extending its service life.\u003c\/p\u003e\n\u003cp dir=\"auto\" style=\"white-space: pre-wrap;\"\u003e\u003cstrong\u003eKit Contents:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul dir=\"auto\"\u003e\n\u003cli\u003eVanes (blades)\u003c\/li\u003e\n\u003cli\u003eValve springs and retainers\u003c\/li\u003e\n\u003cli\u003eGaskets and O-rings\u003c\/li\u003e\n\u003cli\u003eShaft seals\u003c\/li\u003e\n\u003cli\u003eBearings (where applicable)\u003c\/li\u003e\n\u003cli\u003eAll necessary hardware and seals\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003ca title=\"Welch 1402K-06 MAJOR REPAIR KIT, for 1402 and 1405 Vacuum Pump\" href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0755\/2467\/files\/Welch_1402B-01_pump_exploded_view_of_parts_a1a07dbc-d104-4522-bdc5-548e2c434f99.pdf?v=1592764668\" rel=\"noopener noreferrer\" target=\"_blank\"\u003e\u003cstrong\u003eWelch 1402K-06 MAJOR REPAIR KIT, for 1402 and 1405 Vacuum Pump.pdf\u003c\/strong\u003e\u003c\/a\u003e\u003c\/p\u003e\n\u003cp dir=\"auto\" style=\"white-space: pre-wrap;\"\u003eGenuine Welch factory OEM repair kit. Please contact your Chemtech Scientific Vacuum Pump Expert for individual parts.\u003c\/p\u003e\n\u003cp dir=\"auto\" style=\"white-space: pre-wrap;\"\u003eIdeal for pumps with high operating hours, reduced vacuum performance, increased noise, or oil leaks. Recommended after 8,000–12,000 hours of use. Regular major repairs help maintain optimal vacuum levels, reduce vibration, and prevent costly downtime.\u003c\/p\u003e\n\u003cp dir=\"auto\" style=\"white-space: pre-wrap;\"\u003eKeep your Welch 1402 and 1405 vacuum pumps running at peak efficiency with authentic Welch parts from Chemtech Scientific. Easy to install with basic tools.\u003c\/p\u003e\n\u003cp dir=\"auto\" style=\"white-space: pre-wrap;\"\u003e\u003cstrong\u003eNeed assistance or other kits?\u003c\/strong\u003e Email \u003cstrong\u003e\u003ca href=\"mailto:support@chemtechsci.com\" rel=\"noopener noreferrer nofollow\" target=\"_blank\"\u003esupport@chemtechsci.com\u003c\/a\u003e\u003c\/strong\u003e or call \u003cstrong\u003e(484) 424-9415\u003c\/strong\u003e.\u003c\/p\u003e","brand":"Welch","offers":[{"title":"Default Title","offer_id":1164937052,"sku":"1402K-06","price":747.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0755\/2467\/products\/welch-1402k-06-major-repair-kit-for-1402-and-1405-vacuum-pump-17007804512.png?v=1779797061"},{"product_id":"welch-1402k-05-minor-repair-kit-for-1402-and-1405-vacuum-pump","title":"Welch 1402K-05 MINOR REPAIR KIT, for 1402 and 1405 Vacuum Pump","description":"\u003cp dir=\"auto\" style=\"white-space: pre-wrap;\"\u003eThe Welch 1402K-05 Minor Repair Kit is a genuine OEM maintenance kit designed for the Welch 1402 and 1405 DUOSEAL rotary vane vacuum pumps. This kit provides essential components for routine minor repairs and preventive maintenance, helping restore performance and extend pump life.\u003c\/p\u003e\n\u003cp dir=\"auto\" style=\"white-space: pre-wrap;\"\u003e\u003cstrong\u003eNote:\u003c\/strong\u003e This minor kit does \u003cstrong\u003enot\u003c\/strong\u003e include vanes (blades). Vanes are only included in the Major Repair Kit (1402K-06).\u003c\/p\u003e\n\u003cp dir=\"auto\" style=\"white-space: pre-wrap;\"\u003e\u003cstrong\u003eKit Contents:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul dir=\"auto\"\u003e\n\u003cli\u003eValve springs\u003c\/li\u003e\n\u003cli\u003eGaskets and O-rings\u003c\/li\u003e\n\u003cli\u003eShaft seals\u003c\/li\u003e\n\u003cli\u003eNecessary hardware\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003ca title=\"Welch 1402K-05 MINOR REPAIR KIT, for 1402 and 1405 Vacuum Pump\" href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0755\/2467\/files\/Welch_1402B-01_pump_exploded_view_of_parts.pdf?v=1592761371\" rel=\"noopener noreferrer\" target=\"_blank\"\u003e\u003cstrong\u003e Welch 1402K-05 MINOR REPAIR KIT, for 1402 and 1405 Vacuum Pump.pdf\u003c\/strong\u003e\u003c\/a\u003e\u003c\/p\u003e\n\u003cp dir=\"auto\" style=\"white-space: pre-wrap;\"\u003eGenuine Welch factory OEM repair kit. Please contact your Chemtech Scientific Vacuum Pump Expert for individual parts.\u003c\/p\u003e\n\u003cp dir=\"auto\" style=\"white-space: pre-wrap;\"\u003eIdeal for pumps showing early signs of wear or after 4,000–6,000 hours of operation. Regular use of the 1402K-05 Minor Repair Kit helps maintain optimal vacuum levels, reduces noise and vibration, and prevents more costly major repairs. Easy to install with basic tools.\u003c\/p\u003e\n\u003cp dir=\"auto\" style=\"white-space: pre-wrap;\"\u003eKeep your Welch 1402 and 1405 vacuum pumps running efficiently with authentic parts from Chemtech Scientific.\u003c\/p\u003e\n\u003cp dir=\"auto\" style=\"white-space: pre-wrap;\"\u003e\u003cstrong\u003eNeed a Major Repair Kit or assistance?\u003c\/strong\u003e Email \u003cstrong\u003e\u003ca href=\"mailto:support@chemtechsci.com\" rel=\"noopener noreferrer nofollow\" target=\"_blank\"\u003esupport@chemtechsci.com\u003c\/a\u003e\u003c\/strong\u003e or call \u003cstrong\u003e(484) 424-9415\u003c\/strong\u003e.\u003c\/p\u003e","brand":"Welch","offers":[{"title":"Default Title","offer_id":1164938376,"sku":null,"price":369.9,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0755\/2467\/products\/welch-1402k-05-minor-repair-kit-for-1402-and-1405-vacuum-pump-25487931670677.jpg?v=1779794299"},{"product_id":"welch-1376k-10-chemstar-major-repair-kit-for-1376n-vacuum-pump","title":"Welch 1376K-10 Chemstar MAJOR REPAIR KIT for 1376N Vacuum Pump","description":"\u003ch3 dir=\"auto\" bis_size='{\"x\":12,\"y\":9,\"w\":575,\"h\":22,\"abs_x\":621,\"abs_y\":-29}'\u003eWelch 1376K-10 ChemStar Major Repair Kit for 1376N Vacuum Pump\u003c\/h3\u003e\n\u003cp dir=\"auto\" style=\"white-space: pre-wrap;\" bis_size='{\"x\":12,\"y\":43,\"w\":575,\"h\":39,\"abs_x\":621,\"abs_y\":5}'\u003e\u003cstrong bis_size='{\"x\":12,\"y\":43,\"w\":252,\"h\":19,\"abs_x\":621,\"abs_y\":5}'\u003eGenuine Welch factory OEM repair kit.\u003c\/strong\u003e Please contact your Chemtech Scientific Vacuum Pump Expert for individual parts.\u003c\/p\u003e\n\u003cp dir=\"auto\" style=\"white-space: pre-wrap;\" bis_size='{\"x\":12,\"y\":98,\"w\":575,\"h\":78,\"abs_x\":621,\"abs_y\":60}'\u003eRestore full performance and extend the service life of your Welch ChemStar 1376N belt-drive rotary vane vacuum pump with the genuine OEM Major Repair Kit 1376K-10. This comprehensive overhaul kit is specifically designed for the ChemStar series, which excels in handling aggressive chemical vapors and corrosive gases.\u003c\/p\u003e\n\u003cp dir=\"auto\" style=\"white-space: pre-wrap;\" bis_size='{\"x\":12,\"y\":192,\"w\":575,\"h\":58,\"abs_x\":621,\"abs_y\":154}'\u003eThe ChemStar 1376N is a robust, high-capacity pump ideal for large vacuum ovens, freeze dryers, vacuum distillation, and other harsh chemical processes. The 1376K-10 kit brings it back to like-new condition with premium factory components.\u003c\/p\u003e\n\u003cp dir=\"auto\" style=\"white-space: pre-wrap;\" bis_size='{\"x\":12,\"y\":267,\"w\":575,\"h\":19,\"abs_x\":621,\"abs_y\":229}'\u003e\u003cstrong bis_size='{\"x\":12,\"y\":267,\"w\":109,\"h\":19,\"abs_x\":621,\"abs_y\":229}'\u003eWhat’s Included:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul dir=\"auto\" bis_size='{\"x\":12,\"y\":303,\"w\":575,\"h\":78,\"abs_x\":621,\"abs_y\":265}'\u003e\n\u003cli bis_size='{\"x\":52,\"y\":303,\"w\":535,\"h\":19,\"abs_x\":661,\"abs_y\":265}'\u003eCast iron or high-durability rotary vanes\u003c\/li\u003e\n\u003cli bis_size='{\"x\":52,\"y\":322,\"w\":535,\"h\":19,\"abs_x\":661,\"abs_y\":284}'\u003eComplete set of seals, gaskets, and O-rings\u003c\/li\u003e\n\u003cli bis_size='{\"x\":52,\"y\":342,\"w\":535,\"h\":19,\"abs_x\":661,\"abs_y\":304}'\u003eMechanical shaft seal assembly\u003c\/li\u003e\n\u003cli bis_size='{\"x\":52,\"y\":361,\"w\":535,\"h\":19,\"abs_x\":661,\"abs_y\":323}'\u003eValves, springs, intake screen, and other high-wear components\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp bis_size='{\"x\":12,\"y\":395,\"w\":575,\"h\":19,\"abs_x\":621,\"abs_y\":357}'\u003e\u003ca title=\"Welch 1376K-10 Chemstar MAJOR REPAIR KIT, for 1376N Vacuum Pump\" href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0755\/2467\/files\/1376N_exploded_view_repair_kits.pdf?v=1592762073\" rel=\"noopener noreferrer\" bis_size='{\"x\":12,\"y\":395,\"w\":476,\"h\":19,\"abs_x\":621,\"abs_y\":357}' target=\"_blank\"\u003e\u003cstrong bis_size='{\"x\":12,\"y\":395,\"w\":476,\"h\":19,\"abs_x\":621,\"abs_y\":357}'\u003eWelch 1376K-10 Chemstar MAJOR REPAIR KIT, for 1376N Vacuum Pump\u003c\/strong\u003e\u003c\/a\u003e\u003c\/p\u003e\n\u003cp dir=\"auto\" style=\"white-space: pre-wrap;\" bis_size='{\"x\":12,\"y\":430,\"w\":575,\"h\":39,\"abs_x\":621,\"abs_y\":392}'\u003eThis is a \u003cstrong bis_size='{\"x\":64,\"y\":430,\"w\":146,\"h\":19,\"abs_x\":673,\"abs_y\":392}'\u003efull major overhaul kit\u003c\/strong\u003e — everything needed for a complete rebuild (not a minor seal kit).\u003c\/p\u003e\n\u003cp dir=\"auto\" style=\"white-space: pre-wrap;\" bis_size='{\"x\":12,\"y\":486,\"w\":575,\"h\":19,\"abs_x\":621,\"abs_y\":448}'\u003e\u003cstrong bis_size='{\"x\":12,\"y\":486,\"w\":234,\"h\":19,\"abs_x\":621,\"abs_y\":448}'\u003eWhy Buy from Chemtech Scientific?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul dir=\"auto\" bis_size='{\"x\":12,\"y\":521,\"w\":575,\"h\":78,\"abs_x\":621,\"abs_y\":483}'\u003e\n\u003cli bis_size='{\"x\":52,\"y\":521,\"w\":535,\"h\":19,\"abs_x\":661,\"abs_y\":483}'\u003eCompetitive pricing on genuine Welch OEM parts\u003c\/li\u003e\n\u003cli bis_size='{\"x\":52,\"y\":541,\"w\":535,\"h\":19,\"abs_x\":661,\"abs_y\":503}'\u003eExpert technical support from vacuum specialists\u003c\/li\u003e\n\u003cli bis_size='{\"x\":52,\"y\":560,\"w\":535,\"h\":19,\"abs_x\":661,\"abs_y\":522}'\u003eFast shipping\u003c\/li\u003e\n\u003cli bis_size='{\"x\":52,\"y\":580,\"w\":535,\"h\":19,\"abs_x\":661,\"abs_y\":542}'\u003eFull inventory of ChemStar pumps, oils, and service kits\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp dir=\"auto\" style=\"white-space: pre-wrap;\" bis_size='{\"x\":12,\"y\":614,\"w\":575,\"h\":58,\"abs_x\":621,\"abs_y\":576}'\u003eOrder your Welch 1376K-10 Major Repair Kit today and keep your high-capacity ChemStar pump running reliably for years to come. Need help with installation or choosing the right kit? \u003ca title=\"Chemtech Scientific\" href=\"https:\/\/www.chemtechsci.com\/pages\/contact-us\" rel=\"noopener\" bis_size='{\"x\":37,\"y\":653,\"w\":114,\"h\":19,\"abs_x\":646,\"abs_y\":615}' target=\"_blank\"\u003e\u003cstrong bis_size='{\"x\":37,\"y\":653,\"w\":114,\"h\":19,\"abs_x\":646,\"abs_y\":615}'\u003e\u003cspan style=\"text-decoration: underline;\" bis_size='{\"x\":37,\"y\":653,\"w\":114,\"h\":19,\"abs_x\":646,\"abs_y\":615}'\u003eContact our team\u003c\/span\u003e\u003c\/strong\u003e\u003c\/a\u003e — we’re happy to assist.\u003c\/p\u003e\n\u003cp bis_size='{\"x\":12,\"y\":688,\"w\":575,\"h\":19,\"abs_x\":621,\"abs_y\":650}'\u003e \u003c\/p\u003e","brand":"Welch","offers":[{"title":"Default Title","offer_id":1164944252,"sku":null,"price":1008.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0755\/2467\/products\/welch-1376k-10-chemstar-major-repair-kit-for-1376n-vacuum-pump-25489890410645.jpg?v=1779794313"},{"product_id":"welch-1376k-09-chemstar-minor-repair-kit-for-1376n-vacuum-pump","title":"Welch 1376K-09 Chemstar MINOR REPAIR KIT, for 1376N Vacuum Pump","description":"\u003cp dir=\"auto\" style=\"white-space: pre-wrap;\"\u003eThe Welch 1376K-09 ChemStar Minor Repair Kit is a genuine OEM maintenance kit designed specifically for the Welch 1376N ChemStar chemically resistant rotary vane vacuum pump. This kit provides essential components for routine minor repairs and preventive maintenance, helping maintain performance and extend pump life in harsh chemical environments.\u003c\/p\u003e\n\u003cp dir=\"auto\" style=\"white-space: pre-wrap;\"\u003e\u003cstrong\u003eNote:\u003c\/strong\u003e This minor kit does \u003cstrong\u003enot\u003c\/strong\u003e include vanes (blades). Vanes are only included in the Major Repair Kit (1376K-10).\u003c\/p\u003e\n\u003cp dir=\"auto\" style=\"white-space: pre-wrap;\"\u003e\u003cstrong\u003eKit Contents:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul dir=\"auto\"\u003e\n\u003cli\u003eValve springs\u003c\/li\u003e\n\u003cli\u003eGaskets and O-rings\u003c\/li\u003e\n\u003cli\u003eShaft seals\u003c\/li\u003e\n\u003cli\u003eNecessary hardware and seals\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003ca title=\"Welch 1376K-09 Chemstar MINOR REPAIR KIT, for 1376N Vacuum Pump\" href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0755\/2467\/files\/1376N_exploded_view_repair_kits.pdf?v=1592762073\" target=\"_blank\" rel=\"noopener noreferrer\"\u003e\u003cstrong\u003e Welch 1376K-09 Chemstar MINOR REPAIR KIT, for 1376N Vacuum Pump\u003c\/strong\u003e\u003c\/a\u003e\u003c\/p\u003e\n\u003cp dir=\"auto\" style=\"white-space: pre-wrap;\"\u003eGenuine Welch factory OEM repair kit. Please contact your Chemtech Scientific Vacuum Pump Expert for individual parts.\u003c\/p\u003e\n\u003cp dir=\"auto\" style=\"white-space: pre-wrap;\"\u003eIdeal for ChemStar pumps showing early signs of wear or after 4,000–6,000 hours of operation. Regular use helps maintain optimal vacuum levels and prevents more costly major repairs.\u003c\/p\u003e\n\u003cp dir=\"auto\" style=\"white-space: pre-wrap;\"\u003eKeep your Welch 1376N ChemStar vacuum pump running efficiently with authentic parts from Chemtech Scientific.\u003c\/p\u003e\n\u003cp dir=\"auto\" style=\"white-space: pre-wrap;\"\u003e\u003cstrong\u003eNeed a Major Repair Kit or technical assistance?\u003c\/strong\u003e Email \u003cstrong\u003e\u003ca href=\"mailto:support@chemtechsci.com\" target=\"_blank\" rel=\"noopener noreferrer nofollow\"\u003esupport@chemtechsci.com\u003c\/a\u003e\u003c\/strong\u003e or call \u003cstrong\u003e(484) 424-9415\u003c\/strong\u003e.\u003c\/p\u003e","brand":"Welch","offers":[{"title":"Default Title","offer_id":1164945752,"sku":null,"price":446.4,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0755\/2467\/products\/welch-1376k-09-chemstar-minor-repair-kit-for-1376n-vacuum-pump-25494052241557.jpg?v=1779797059"},{"product_id":"welch-1400k-10-chemstar-major-repair-kit-for-1400n-vacuum-pump","title":"Welch 1400K-10, Chemstar MAJOR REPAIR KIT, for 1400N Vacuum Pump","description":"\u003cp dir=\"auto\" style=\"white-space: pre-wrap;\"\u003eThe Welch 1400K-10 ChemStar Major Repair Kit is a complete overhaul kit designed for the Welch 1400N ChemStar chemically resistant rotary vane vacuum pump. This high-quality kit includes all major components needed for a full rebuild, restoring your pump to like-new performance and significantly extending its service life in harsh chemical environments.\u003c\/p\u003e\n\u003cp dir=\"auto\" style=\"white-space: pre-wrap;\"\u003e\u003cstrong\u003eKit Contents:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul dir=\"auto\"\u003e\n\u003cli\u003eVanes (blades)\u003c\/li\u003e\n\u003cli\u003eValve springs and retainers\u003c\/li\u003e\n\u003cli\u003eGaskets and O-rings\u003c\/li\u003e\n\u003cli\u003eShaft seals\u003c\/li\u003e\n\u003cli\u003eBearings (where applicable)\u003c\/li\u003e\n\u003cli\u003eAll necessary hardware and seals\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp dir=\"auto\" style=\"white-space: pre-wrap;\"\u003eGenuine Welch factory OEM repair kit. Please contact your Chemtech Scientific Vacuum Pump Expert for individual parts.\u003c\/p\u003e\n\u003cp dir=\"auto\" style=\"white-space: pre-wrap;\"\u003eIdeal for ChemStar pumps with high operating hours, reduced vacuum performance, increased noise, or oil leaks. Recommended after 8,000–12,000 hours of use. Regular major repairs help maintain optimal vacuum levels and prevent costly downtime.\u003c\/p\u003e\n\u003cp dir=\"auto\" style=\"white-space: pre-wrap;\"\u003eKeep your Welch 1400N ChemStar vacuum pump running at peak efficiency with authentic Welch parts from Chemtech Scientific.\u003c\/p\u003e\n\u003cp dir=\"auto\" style=\"white-space: pre-wrap;\"\u003e\u003cstrong\u003eNeed assistance or other kits?\u003c\/strong\u003e Email \u003cstrong\u003e\u003ca href=\"mailto:support@chemtechsci.com\" target=\"_blank\" rel=\"noopener noreferrer nofollow\"\u003esupport@chemtechsci.com\u003c\/a\u003e\u003c\/strong\u003e or call \u003cstrong\u003e(484) 424-9415\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e","brand":"Welch","offers":[{"title":"Default Title","offer_id":1164947300,"sku":null,"price":812.57,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0755\/2467\/products\/welch-1400k-10-chemstar-major-repair-kit-for-1400n-vacuum-pump-17007935584.png?v=1779796200"},{"product_id":"welch-1400k-09-chemstar-minor-repair-kit-for-1400n-vacuum-pump","title":"Welch 1400K-09, Chemstar MINOR REPAIR KIT, for 1400N Vacuum Pump","description":"\u003cp dir=\"auto\" style=\"white-space: pre-wrap;\"\u003eThe Welch 1400K-09 ChemStar Minor Repair Kit is a genuine OEM maintenance kit designed specifically for the Welch 1400N ChemStar chemically resistant rotary vane vacuum pump. This kit provides essential components for routine minor repairs and preventive maintenance, helping maintain performance and extend pump life in harsh chemical environments.\u003c\/p\u003e\n\u003cp dir=\"auto\" style=\"white-space: pre-wrap;\"\u003e\u003cstrong\u003eNote:\u003c\/strong\u003e This minor kit does \u003cstrong\u003enot\u003c\/strong\u003e include vanes (blades). Vanes are only included in the Major Repair Kit (1400K-10).\u003c\/p\u003e\n\u003cp dir=\"auto\" style=\"white-space: pre-wrap;\"\u003e\u003cstrong\u003eKit Contents:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul dir=\"auto\"\u003e\n\u003cli\u003eValve springs\u003c\/li\u003e\n\u003cli\u003eGaskets and O-rings\u003c\/li\u003e\n\u003cli\u003eShaft seals\u003c\/li\u003e\n\u003cli\u003eNecessary hardware\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp dir=\"auto\" style=\"white-space: pre-wrap;\"\u003eGenuine Welch factory OEM repair kit. Please contact your Chemtech Scientific Vacuum Pump Expert for individual parts.\u003c\/p\u003e\n\u003cp dir=\"auto\" style=\"white-space: pre-wrap;\"\u003eIdeal for ChemStar pumps showing early signs of wear or after 4,000–6,000 hours of operation. Regular use of the 1400K-09 Minor Repair Kit helps maintain optimal vacuum levels, reduces noise and vibration, and prevents more costly major repairs.\u003c\/p\u003e\n\u003cp dir=\"auto\" style=\"white-space: pre-wrap;\"\u003eKeep your Welch 1400N ChemStar vacuum pump running efficiently with authentic parts from Chemtech Scientific.\u003c\/p\u003e\n\u003cp dir=\"auto\" style=\"white-space: pre-wrap;\"\u003e\u003cstrong\u003eNeed a Major Repair Kit or assistance?\u003c\/strong\u003e Email \u003cstrong\u003e\u003ca href=\"mailto:support@chemtechsci.com\" target=\"_blank\" rel=\"noopener noreferrer nofollow\"\u003esupport@chemtechsci.com\u003c\/a\u003e\u003c\/strong\u003e or call \u003cstrong\u003e(484) 424-9415\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e","brand":"Welch","offers":[{"title":"Default Title","offer_id":1164949224,"sku":null,"price":365.4,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0755\/2467\/products\/welch-1400k-09-chemstar-minor-repair-kit-for-1400n-vacuum-pump-17007968352.png?v=1779796642"},{"product_id":"welch-1402k-09-chemstar-minor-repair-kit-for-1402n-vacuum-pump","title":"Welch 1402K-09, Chemstar MINOR REPAIR KIT, for 1402N Vacuum Pump","description":"\u003cp dir=\"auto\" style=\"white-space: pre-wrap;\" bis_size='{\"x\":12,\"y\":9,\"w\":575,\"h\":97,\"abs_x\":621,\"abs_y\":71}'\u003eThe Welch 1402K-09 ChemStar Minor Repair Kit is a genuine OEM maintenance kit designed specifically for the Welch 1402N ChemStar chemically resistant rotary vane vacuum pump. This kit provides essential components for routine minor repairs and preventive maintenance, helping maintain performance and extend pump life in harsh chemical environments.\u003c\/p\u003e\n\u003cp dir=\"auto\" style=\"white-space: pre-wrap;\" bis_size='{\"x\":12,\"y\":123,\"w\":575,\"h\":39,\"abs_x\":621,\"abs_y\":185}'\u003e\u003cstrong bis_size='{\"x\":12,\"y\":123,\"w\":36,\"h\":19,\"abs_x\":621,\"abs_y\":185}'\u003eNote:\u003c\/strong\u003e This minor kit does \u003cstrong bis_size='{\"x\":173,\"y\":123,\"w\":22,\"h\":19,\"abs_x\":782,\"abs_y\":185}'\u003enot\u003c\/strong\u003e include vanes (blades). Vanes are only included in the Major Repair Kit (1402K-10).\u003c\/p\u003e\n\u003cp dir=\"auto\" style=\"white-space: pre-wrap;\" bis_size='{\"x\":12,\"y\":178,\"w\":575,\"h\":19,\"abs_x\":621,\"abs_y\":240}'\u003e\u003cstrong bis_size='{\"x\":12,\"y\":178,\"w\":84,\"h\":19,\"abs_x\":621,\"abs_y\":240}'\u003eKit Contents:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul dir=\"auto\" bis_size='{\"x\":12,\"y\":214,\"w\":575,\"h\":78,\"abs_x\":621,\"abs_y\":276}'\u003e\n\u003cli bis_size='{\"x\":52,\"y\":214,\"w\":535,\"h\":19,\"abs_x\":661,\"abs_y\":276}'\u003eValve springs\u003c\/li\u003e\n\u003cli bis_size='{\"x\":52,\"y\":233,\"w\":535,\"h\":19,\"abs_x\":661,\"abs_y\":295}'\u003eGaskets and O-rings\u003c\/li\u003e\n\u003cli bis_size='{\"x\":52,\"y\":253,\"w\":535,\"h\":19,\"abs_x\":661,\"abs_y\":315}'\u003eShaft seals\u003c\/li\u003e\n\u003cli bis_size='{\"x\":52,\"y\":273,\"w\":535,\"h\":19,\"abs_x\":661,\"abs_y\":335}'\u003eNecessary hardware\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp dir=\"auto\" style=\"white-space: pre-wrap;\" bis_size='{\"x\":12,\"y\":306,\"w\":575,\"h\":39,\"abs_x\":621,\"abs_y\":368}'\u003eGenuine Welch factory OEM repair kit. Please contact your Chemtech Scientific Vacuum Pump Expert for individual parts.\u003c\/p\u003e\n\u003cp dir=\"auto\" style=\"white-space: pre-wrap;\" bis_size='{\"x\":12,\"y\":361,\"w\":575,\"h\":58,\"abs_x\":621,\"abs_y\":423}'\u003eIdeal for ChemStar pumps showing early signs of wear or after 4,000–6,000 hours of operation. Regular use of the 1402K-09 Minor Repair Kit helps maintain optimal vacuum levels, reduces noise and vibration, and prevents more costly major repairs.\u003c\/p\u003e\n\u003cp dir=\"auto\" style=\"white-space: pre-wrap;\" bis_size='{\"x\":12,\"y\":436,\"w\":575,\"h\":39,\"abs_x\":621,\"abs_y\":498}'\u003eKeep your Welch 1402N ChemStar vacuum pump running efficiently with authentic parts from Chemtech Scientific.\u003c\/p\u003e\n\u003cp dir=\"auto\" style=\"white-space: pre-wrap;\" bis_size='{\"x\":12,\"y\":491,\"w\":575,\"h\":39,\"abs_x\":621,\"abs_y\":553}'\u003e\u003cstrong bis_size='{\"x\":12,\"y\":491,\"w\":251,\"h\":19,\"abs_x\":621,\"abs_y\":553}'\u003eNeed a Major Repair Kit or assistance?\u003c\/strong\u003e Email \u003cstrong bis_size='{\"x\":303,\"y\":491,\"w\":177,\"h\":19,\"abs_x\":912,\"abs_y\":553}'\u003e\u003ca href=\"mailto:support@chemtechsci.com\" rel=\"noopener noreferrer nofollow\" bis_size='{\"x\":303,\"y\":491,\"w\":177,\"h\":19,\"abs_x\":912,\"abs_y\":553}' target=\"_blank\"\u003esupport@chemtechsci.com\u003c\/a\u003e\u003c\/strong\u003e or call \u003cstrong bis_size='{\"x\":12,\"y\":491,\"w\":552,\"h\":38,\"abs_x\":621,\"abs_y\":553}'\u003e(484) 424-9415\u003c\/strong\u003e.\u003c\/p\u003e","brand":"Welch","offers":[{"title":"Default Title","offer_id":1164950984,"sku":null,"price":451.8,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0755\/2467\/products\/welch-1402k-09-chemstar-minor-repair-kit-for-1402n-vacuum-pump-25487927050389.jpg?v=1779796651"},{"product_id":"welch-1402k-10-chemstar-major-repair-kit-for-1402n-vacuum-pump","title":"Welch 1402K-10, Chemstar MAJOR REPAIR KIT, for 1402N Vacuum Pump","description":"\u003cp dir=\"auto\" style=\"white-space: pre-wrap;\" bis_size='{\"x\":12,\"y\":9,\"w\":560,\"h\":97,\"abs_x\":621,\"abs_y\":271}'\u003eThe Welch 1402K-10 ChemStar Major Repair Kit is a complete overhaul kit designed for the Welch 1402N ChemStar chemically resistant rotary vane vacuum pump. This high-quality kit includes all major components needed for a full rebuild, restoring your pump to like-new performance and significantly extending its service life in harsh chemical environments.\u003c\/p\u003e\n\u003cp dir=\"auto\" style=\"white-space: pre-wrap;\" bis_size='{\"x\":12,\"y\":123,\"w\":560,\"h\":19,\"abs_x\":621,\"abs_y\":385}'\u003e\u003cstrong bis_size='{\"x\":12,\"y\":123,\"w\":84,\"h\":19,\"abs_x\":621,\"abs_y\":385}'\u003eKit Contents:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul dir=\"auto\" bis_size='{\"x\":12,\"y\":159,\"w\":560,\"h\":117,\"abs_x\":621,\"abs_y\":421}'\u003e\n\u003cli bis_size='{\"x\":52,\"y\":159,\"w\":520,\"h\":19,\"abs_x\":661,\"abs_y\":421}'\u003eVanes (blades)\u003c\/li\u003e\n\u003cli bis_size='{\"x\":52,\"y\":178,\"w\":520,\"h\":19,\"abs_x\":661,\"abs_y\":440}'\u003eValve springs and retainers\u003c\/li\u003e\n\u003cli bis_size='{\"x\":52,\"y\":198,\"w\":520,\"h\":19,\"abs_x\":661,\"abs_y\":460}'\u003eGaskets and O-rings\u003c\/li\u003e\n\u003cli bis_size='{\"x\":52,\"y\":217,\"w\":520,\"h\":19,\"abs_x\":661,\"abs_y\":479}'\u003eShaft seals\u003c\/li\u003e\n\u003cli bis_size='{\"x\":52,\"y\":237,\"w\":520,\"h\":19,\"abs_x\":661,\"abs_y\":499}'\u003eBearings (where applicable)\u003c\/li\u003e\n\u003cli bis_size='{\"x\":52,\"y\":257,\"w\":520,\"h\":19,\"abs_x\":661,\"abs_y\":519}'\u003eAll necessary hardware and seals\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp dir=\"auto\" style=\"white-space: pre-wrap;\" bis_size='{\"x\":12,\"y\":290,\"w\":560,\"h\":39,\"abs_x\":621,\"abs_y\":552}'\u003eGenuine Welch factory OEM repair kit. Please contact your Chemtech Scientific Vacuum Pump Expert for individual parts.\u003c\/p\u003e\n\u003cp dir=\"auto\" style=\"white-space: pre-wrap;\" bis_size='{\"x\":12,\"y\":345,\"w\":560,\"h\":78,\"abs_x\":621,\"abs_y\":607}'\u003eIdeal for ChemStar pumps with high operating hours, reduced vacuum performance, increased noise, or oil leaks. Recommended after 8,000–12,000 hours of use. Regular major repairs help maintain optimal vacuum levels, reduce vibration, and prevent costly downtime.\u003c\/p\u003e\n\u003cp dir=\"auto\" style=\"white-space: pre-wrap;\" bis_size='{\"x\":12,\"y\":440,\"w\":560,\"h\":39,\"abs_x\":621,\"abs_y\":702}'\u003eKeep your Welch 1402N ChemStar vacuum pump running at peak efficiency with authentic Welch parts from Chemtech Scientific.\u003c\/p\u003e\n\u003cp dir=\"auto\" style=\"white-space: pre-wrap;\" bis_size='{\"x\":12,\"y\":495,\"w\":560,\"h\":39,\"abs_x\":621,\"abs_y\":757}'\u003e\u003cstrong bis_size='{\"x\":12,\"y\":495,\"w\":195,\"h\":19,\"abs_x\":621,\"abs_y\":757}'\u003eNeed assistance or other kits?\u003c\/strong\u003e Email \u003cstrong bis_size='{\"x\":248,\"y\":495,\"w\":177,\"h\":19,\"abs_x\":857,\"abs_y\":757}'\u003e\u003ca href=\"mailto:support@chemtechsci.com\" rel=\"noopener noreferrer nofollow\" bis_size='{\"x\":248,\"y\":495,\"w\":177,\"h\":19,\"abs_x\":857,\"abs_y\":757}' target=\"_blank\"\u003esupport@chemtechsci.com\u003c\/a\u003e\u003c\/strong\u003e or call \u003cstrong bis_size='{\"x\":12,\"y\":495,\"w\":526,\"h\":38,\"abs_x\":621,\"abs_y\":757}'\u003e(484) 424-9415\u003c\/strong\u003e.\u003c\/p\u003e","brand":"Welch","offers":[{"title":"Default Title","offer_id":1164951924,"sku":null,"price":825.3,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0755\/2467\/products\/welch-1402k-10-chemstar-major-repair-kit-for-1402n-vacuum-pump-17008033888.png?v=1779796785"},{"product_id":"welch-1420h-14-cold-trap","title":"Welch 1420H-14, Cold Trap","description":"\u003cp\u003eDry ice \/ isopropanol cold  trap. Provides pre-pump protection by condensing vapors. Vapors contact outside stainless steel shell, traps up to 1.5 l condensate. Large, removable center well accommodates up to 2.8 l of dry ice \/ IPA slurry for up to 12 hours protection depending upon vapor load.\u003c\/p\u003e\n\u003cp\u003eTakes 7\/16\" I.D tubing.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e","brand":"Welch","offers":[{"title":"Default Title","offer_id":1165652144,"sku":null,"price":1369.8,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0755\/2467\/products\/welch-1420h-14-cold-trap-25487594356885.jpg?v=1779793929"},{"product_id":"welch-1417p-10-exhaust-oil-mist-filter","title":"Welch 1417P-10 Exhaust Oil Mist Filter","description":"\u003cp dir=\"auto\" style=\"white-space: pre-wrap;\"\u003eWelch 1417P-10 Exhaust Oil Mist Filter - \u003cstrong\u003eProtect your lab. Protect your pump.\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp dir=\"auto\" style=\"white-space: pre-wrap;\"\u003eThe Welch 1417P-10 is a high-efficiency coalescing exhaust filter designed specifically for DuoSeal vacuum pumps, including the popular \u003cstrong\u003e1376, 1402, 1405\u003c\/strong\u003e, and Chemstar 1376N, Chemstar 1402N.\u003c\/p\u003e\n\u003ch4 dir=\"auto\"\u003eKey Benefits:\u003c\/h4\u003e\n\u003cul dir=\"auto\"\u003e\n\u003cli\u003e\n\u003cstrong\u003eCaptures 99% of oil mist\u003c\/strong\u003e at 0.3 micron\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eSignificantly reduces pump noise\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eKeeps your lab air clean\u003c\/strong\u003e and free from oil vapor\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eExtends pump life\u003c\/strong\u003e by preventing oil loss\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEasy to maintain\u003c\/strong\u003e – replaceable filter element (Part # 1417G)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4 dir=\"auto\"\u003eDesigned for:\u003c\/h4\u003e\n\u003cul dir=\"auto\"\u003e\n\u003cli\u003eWelch DuoSeal belt-drive vacuum pumps\u003c\/li\u003e\n\u003cli\u003eLaboratory environments\u003c\/li\u003e\n\u003cli\u003eVacuum ovens, rotary evaporators, and general lab use\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp dir=\"auto\" style=\"white-space: pre-wrap;\"\u003e\u003cstrong\u003eClean, Quiet, Professional Vacuum Operation\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp dir=\"auto\" style=\"white-space: pre-wrap;\"\u003eInstall the Welch 1417P-10 Exhaust Filter and enjoy cleaner air, quieter performance, and longer pump life. The professional choice for laboratories that demand reliability and cleanliness.\u003c\/p\u003e\n\u003cp\u003eWelch Exhaust Filter 1417P-10\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eFilters oil mist from pump exhaust\u003c\/li\u003e\n\u003cli\u003eSimple replacement of element\u003c\/li\u003e\n\u003cli\u003eReduces pump noise\u003c\/li\u003e\n\u003cli\u003eFilters to 0.3 micron particle size\u003c\/li\u003e\n\u003cli\u003eScrew-in type\u003c\/li\u003e\n\u003cli\u003eReplacement element is part#:1417G\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0755\/2467\/files\/Welch_1417P-10.jpg?v=1776706839\" alt=\"\"\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0231\/7685\/files\/Exhaust_Filter_table_1024x1024.jpg?19283\"\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e","brand":"Welch","offers":[{"title":"Default Title","offer_id":1165664944,"sku":null,"price":551.7,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0755\/2467\/products\/welch-1417p-10-exhaust-oil-mist-filter-25487617097877.jpg?v=1779793929"},{"product_id":"welch-1407k-11-duoseal-vacuum-pump-oil-1-qt","title":"Welch 1407K-11 DuoSeal Vacuum Pump Oil - 1 QT","description":"\u003cp dir=\"auto\" style=\"white-space: pre-wrap;\"\u003e\u003cstrong\u003eWelch 1407K-11 DuoSeal Pump Oil\u003c\/strong\u003e is the genuine OEM vacuum pump oil specifically formulated for Welch DuoSeal belt-drive rotary vane vacuum pumps. This high-quality mineral oil ensures optimal performance, deep vacuum levels, and long pump life.\u003c\/p\u003e\n\u003cp dir=\"auto\" style=\"white-space: pre-wrap;\"\u003ePerfect for laboratories, service shops, and industrial users who need reliable lubrication and excellent vapor handling.\u003c\/p\u003e\n\u003ch4 dir=\"auto\"\u003eKey Features \u0026amp; Benefits:\u003c\/h4\u003e\n\u003cul dir=\"auto\"\u003e\n\u003cli\u003e\n\u003cstrong\u003eGenuine Welch OEM Formula\u003c\/strong\u003e – Engineered specifically for DuoSeal pumps\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eExcellent Vapor Tolerance\u003c\/strong\u003e – Handles water vapor and chemical vapors effectively\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLow Vapor Pressure\u003c\/strong\u003e – Helps achieve and maintain deep vacuum (down to 0.001 Torr)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHigh Thermal Stability\u003c\/strong\u003e – Resists oxidation and sludge formation\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSuperior Lubrication\u003c\/strong\u003e – Reduces wear on vanes and bearings\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEasy Maintenance\u003c\/strong\u003e – Clear color makes oil condition easy to monitor\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4 dir=\"auto\"\u003eCompatible With:\u003c\/h4\u003e\n\u003cul dir=\"auto\"\u003e\n\u003cli\u003eWelch DuoSeal series pumps\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4 dir=\"auto\"\u003eIdeal For:\u003c\/h4\u003e\n\u003cul dir=\"auto\"\u003e\n\u003cli\u003eRotary evaporators\u003c\/li\u003e\n\u003cli\u003eVacuum ovens and drying\u003c\/li\u003e\n\u003cli\u003eLaboratory vacuum systems\u003c\/li\u003e\n\u003cli\u003eRefrigeration and AC service\u003c\/li\u003e\n\u003cli\u003eDegassing and defoaming applications\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp dir=\"auto\" style=\"white-space: pre-wrap;\"\u003e\u003cstrong\u003ePackage Includes:\u003c\/strong\u003e 1 × Welch 1407K-11 DuoSeal Vacuum Pump Oil (typically 1 Quart \/ 0.946 Liter)\u003c\/p\u003e\n\u003cp dir=\"auto\" style=\"white-space: pre-wrap;\"\u003eKeep your Welch DuoSeal vacuum pump performing at its best with \u003cstrong\u003egenuine Welch 1407K-11 DuoSeal Oil\u003c\/strong\u003e.\u003c\/p\u003e","brand":"Welch","offers":[{"title":"Default Title","offer_id":1177912072,"sku":"1407K-11","price":36.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0755\/2467\/products\/welch-1407k-11-duoseal-vacuum-pump-oil-1-qt-17222598752.jpg?v=1779793929"},{"product_id":"welch-331020-5-vacuum-hose","title":"Welch 331020-5, VACUUM HOSE","description":"\u003cp\u003eVACUUM HOSE 3\/16\" I.D, 13\/16\" OD 5 FT LENGTH\u003c\/p\u003e\n\u003cp\u003eVery thick walled Welch vacuum hose 331020-5  for vacuum or pressure applications\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e","brand":"Welch","offers":[{"title":"Default Title","offer_id":1177923372,"sku":"331020-5","price":81.7,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0755\/2467\/products\/welch-331020-5-vacuum-hose-25479178911893.jpg?v=1779793942"},{"product_id":"chemtech-scientific-bullseye-vacuum-gauge","title":"Chemtech Scientific Bullseye Vacuum Gauge","description":"\u003ch2 style=\"text-align: center;\"\u003eChemtech Scientific Bullseye Vacuum Gauge\u003c\/h2\u003e\n\u003cp\u003ePortable Micron bullseye vacuum gauge that measures in 11 different units, has vacuum alert and multiple graphical viewing options.\u003c\/p\u003e\n\u003cp\u003eUse AA batteries or micro USB for permanent installations\u003c\/p\u003e\n\u003cp\u003eUnits: Torr, mbar, bar, kPa, inches of Hg, mm Hg, millitorr, microns, inches of water, PSI, Pa\u003c\/p\u003e\n\u003cp\u003eTotal Range: 1E-4 - 1000 Torr\u003c\/p\u003e\n\u003cp\u003eThis rugged and portable vacuum gauge features visual graphing to pinpoint problems in real time (Leak, Pump, Outgas, Stable). Includes a powerful magnet and kickstand to enable hands-free operation.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli class=\"ql-indent-1\"\u003eVisual graphing feature right on the display.\u003c\/li\u003e\n\u003cli class=\"ql-indent-1\"\u003eVacuum Analytics to quickly identify vacuum pressure trends.\u003c\/li\u003e\n\u003cli class=\"ql-indent-1\"\u003eGraphical display for quick determination of vacuum level.\u003c\/li\u003e\n\u003cli class=\"ql-indent-1\"\u003eHands-Free with a “hang up your overalls” strong magnet.\u003c\/li\u003e\n\u003cli class=\"ql-indent-1\"\u003eLong battery life and versatility with 12 different measuring units including Micron, Torr, and Inches of Mercury.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e \u003ca style=\"color: #000000;\" href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0755\/2467\/files\/ChemtechBullseyeVacuumGauge.2.pdf?11575909011354118010\" target=\"_blank\" rel=\"noopener noreferrer\"\u003e\u003cstrong\u003eOwners Manual\u003c\/strong\u003e\u003c\/a\u003e\u003c\/p\u003e\n\u003ctable width=\"827\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd width=\"288\"\u003eWeight\u003c\/td\u003e\n\u003ctd width=\"539\"\u003e2 lbs\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDimensions\u003c\/td\u003e\n\u003ctd\u003e11 x 10 x 4 in\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eIsolated\u003c\/td\u003e\n\u003ctd\u003eNo\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eVacuum Reference\u003c\/td\u003e\n\u003ctd\u003eAbsolute\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDisplay\u003c\/td\u003e\n\u003ctd\u003eYes\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eUnits\u003c\/td\u003e\n\u003ctd\u003eTorr, mbar, bar, kPa, inches of Hg, mm Hg, millitorr, microns, inches of water, PSI, Pa\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTotal Range\u003c\/td\u003e\n\u003ctd\u003e1E-4 – 1000 Torr\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRange with Accuracy\u003c\/td\u003e\n\u003ctd\u003e.001 – 2.0 Torr\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSensor Type\u003c\/td\u003e\n\u003ctd\u003eThermocouple\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePortable\u003c\/td\u003e\n\u003ctd\u003eYes\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePanel Mount\u003c\/td\u003e\n\u003ctd\u003eNo\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eVacuum Interface\u003c\/td\u003e\n\u003ctd\u003e1\/8″ male NPT\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePower\u003c\/td\u003e\n\u003ctd\u003e4 AA Alkaline\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e","brand":"Chemtech Scientific","offers":[{"title":"Default Title","offer_id":1177940700,"sku":"CSBPG","price":598.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0755\/2467\/products\/chemtech-scientific-bullseye-vacuum-gauge-17222893664.jpg?v=1779793938"},{"product_id":"welch-8890k-02-minor-repair-kit-for-8890-vacuum-pump","title":"Welch 8890K-02, MINOR REPAIR KIT, for 8890 Vacuum Pump","description":"\u003cp\u003eGenuine Welch factory OEM repair kit. Please contact your Chemtech Scientific Vacuum Pump Expert for individual parts.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e","brand":"Welch","offers":[{"title":"Default Title","offer_id":1188132676,"sku":"8890K-02","price":162.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0755\/2467\/products\/welch-8890k-02-minor-repair-kit-for-8890-vacuum-pump-25479266762901.jpg?v=1779796174"},{"product_id":"welch-8905k-02-minor-repair-kit-for-8905-vacuum-pump","title":"Welch 8905K-02, MINOR REPAIR KIT, for 8905 Vacuum Pump","description":"\u003cp bis_size='{\"x\":12,\"y\":9,\"w\":575,\"h\":39,\"abs_x\":621,\"abs_y\":71}'\u003eGenuine Welch factory OEM repair kit. Please contact your Chemtech Scientific Vacuum Pump Expert for individual parts.\u003c\/p\u003e\n\u003cp bis_size='{\"x\":12,\"y\":64,\"w\":575,\"h\":19,\"abs_x\":621,\"abs_y\":126}'\u003ePlease click the following link to see exploded view repair kit for 8905 pump :\u003c\/p\u003e\n\u003ch2 bis_size='{\"x\":12,\"y\":100,\"w\":575,\"h\":29,\"abs_x\":621,\"abs_y\":162}'\u003e\n\u003cspan style=\"color: #08065e;\" bis_size='{\"x\":12,\"y\":100,\"w\":361,\"h\":28,\"abs_x\":621,\"abs_y\":162}'\u003e \u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0755\/2467\/files\/8905_Service_Kit.pdf?v=1585255566\" title=\"Welch 8905K-02 minor repair kit, for 8905 vacuum pump\" rel=\"noopener noreferrer\" style=\"color: #08065e;\" bis_size='{\"x\":12,\"y\":100,\"w\":361,\"h\":28,\"abs_x\":621,\"abs_y\":162}' target=\"_blank\"\u003eWelch 8905K-02 minor repair kit.pdf\u003c\/a\u003e\u003c\/span\u003e \u003cbr bis_size='{\"x\":373,\"y\":100,\"w\":0,\"h\":28,\"abs_x\":982,\"abs_y\":162}'\u003e\n\u003c\/h2\u003e","brand":"Welch","offers":[{"title":"Default Title","offer_id":1188147048,"sku":null,"price":244.8,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0755\/2467\/products\/welch-8905k-02-minor-repair-kit-for-8905-vacuum-pump-17335517280.jpg?v=1779796787"},{"product_id":"welch-8917k-04-minor-repair-kit-for-8917-8912-8907-vacuum-pumps","title":"Welch 8917K-04, MINOR REPAIR KIT, for 8917\/8912\/8907 Vacuum Pump","description":"\u003cp\u003eGenuine Welch factory OEM repair kit. Please contact your Chemtech Scientific Vacuum Pump Expert for individual parts.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e","brand":"Welch","offers":[{"title":"Default Title","offer_id":1188181212,"sku":null,"price":335.7,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0755\/2467\/products\/welch-8917k-04-minor-repair-kit-for-8917-8912-8907-vacuum-pump-17335713888.jpg?v=1779797059"},{"product_id":"welch-8925k-02-minor-repair-kit-for-8925-vacuum-pump","title":"Welch 8925K-02, MINOR REPAIR KIT, for 8925 Vacuum Pump","description":"\u003cp\u003eGenuine Welch factory OEM repair kit. Please contact your Chemtech Scientific Vacuum Pump Expert for individual parts.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e","brand":"Welch","offers":[{"title":"Default Title","offer_id":1188195404,"sku":null,"price":369.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0755\/2467\/products\/welch-8925k-02-minor-repair-kit-for-8925-vacuum-pump-25479245529237.jpg?v=1779794317"},{"product_id":"welch-8915k-02-minor-repair-kit-for-8920-vacuum-pump","title":"Welch 8915K-02 MINOR REPAIR KIT, for 8920 Vacuum Pump","description":"\u003cp\u003eGenuine Welch factory OEM repair kit. Please contact your Chemtech Scientific Vacuum Pump Expert for individual parts.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e","brand":"Welch","offers":[{"title":"Default Title","offer_id":1188200320,"sku":null,"price":310.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0755\/2467\/products\/welch-8915k-02-minor-repair-kit-for-8920-vacuum-pump-17335844960.jpg?v=1779794314"},{"product_id":"welch-2047k-01-single-head-service-kit-for-2032-2042-2047-vacuum-pump","title":"Welch 2047K‐01 SINGLE HEAD SERVICE KIT, for 2032, 2042, 2047 Vacuum Pump","description":"\u003cp\u003eWelch 2047K‐01 SINGLE HEAD SERVICE KIT, for 2032, 2042, 2047 Vacuum Pump - Genuine Welch factory OEM repair kit. Please contact your Chemtech Scientific Vacuum Pump Expert for individual parts.\u003c\/p\u003e\n\u003cp\u003eIt strongly recommended to use the OEM \u003ca title=\"Welch Diaphragm Wrench 826801-16\" href=\"https:\/\/www.chemtechsci.com\/products\/welch-826801-16-wrench-for-welch-diaphragm\"\u003eWelch diaphragm wrench\u003c\/a\u003e when removing or installing this diaphragm.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e","brand":"Welch","offers":[{"title":"Default Title","offer_id":1188218972,"sku":"2047K-01","price":410.4,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0755\/2467\/products\/welch-2047k-01-single-head-service-kit-for-2032-2042-2047-vacuum-pump-25481345433749.jpg?v=1779797064"},{"product_id":"welch-2037k-01-single-head-service-kit-for-2034-2037-2044-vacuum-pump","title":"Welch 2037K‐01 SINGLE HEAD SERVICE KIT, for 2034, 2037, 2044 Vacuum Pump","description":"\u003cp bis_size='{\"x\":12,\"y\":9,\"w\":575,\"h\":39,\"abs_x\":621,\"abs_y\":298}'\u003eWelch 2037K‐01 SINGLE HEAD SERVICE KIT, for 2034, 2037, 2044 Vacuum Pump - Genuine Welch factory OEM repair kit. One head service kit includes 1 diaphragm, valves and o-rings.\u003c\/p\u003e\n\u003cp bis_size='{\"x\":12,\"y\":64,\"w\":575,\"h\":39,\"abs_x\":621,\"abs_y\":353}'\u003eIt strongly recommended to use the OEM \u003ca title=\"Welch Diaphragm Wrench 826801-16\" href=\"https:\/\/www.chemtechsci.com\/products\/welch-826801-16-wrench-for-welch-diaphragm\" bis_size='{\"x\":271,\"y\":64,\"w\":157,\"h\":19,\"abs_x\":880,\"abs_y\":353}'\u003eWelch diaphragm wrench\u003c\/a\u003e when removing or installing this diaphragm.\u003c\/p\u003e\n\u003cp bis_size='{\"x\":12,\"y\":119,\"w\":575,\"h\":19,\"abs_x\":621,\"abs_y\":408}'\u003ePlease contact your Chemtech Scientific Vacuum Pump Expert for individual parts.\u003c\/p\u003e\n\u003cp bis_size='{\"x\":12,\"y\":155,\"w\":575,\"h\":19,\"abs_x\":621,\"abs_y\":444}'\u003e \u003c\/p\u003e","brand":"Welch","offers":[{"title":"Default Title","offer_id":1188234768,"sku":"2037K-01","price":449.1,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0755\/2467\/products\/welch-2037k-01-single-head-service-kit-for-2034-2037-2044-vacuum-pump-17337450592.jpg?v=1779794315"},{"product_id":"welch-2025k-06-tubing-service-kit-2025-s-n-ec091300","title":"Welch 2025K-06, TUBING SERVICE KIT 2025  S\/N \u003eEC091300","description":"\u003cp\u003eWelch 2025K-06 TUBING SERVICE KIT, for 2025\/ 2026\/ 2027\/ 2028 Vacuum Pump - Genuine Welch factory OEM repair kit. Please contact your Chemtech Scientific Vacuum Pump Expert for individual parts.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e","brand":"Welch","offers":[{"title":"Default Title","offer_id":1188248908,"sku":"2025K-06","price":279.9,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0755\/2467\/products\/welch-2025k-06-tubing-service-kit-2025-s-n-ec091300-17338007648.jpg?v=1779794324"},{"product_id":"welch-402042-us-service-kit-for-2054-2052-4-head-vacuum-pump","title":"Welch 402042‐US SERVICE KIT, for 2054\/2052(4‐head) Vacuum Pump","description":"\u003cp\u003eWelch 402042‐US SERVICE KIT, for Welch 2052\/2054 and Welch MPC 601T (4‐head) Vacuum Pump - Complete diaphragm, valve and o-ring replacement kit\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"font-size: 12.0pt; font-weight: normal;\"\u003eTools required (NOT INCLUDED WITH THIS KIT) \u003ca title=\"Welch 826801 Spanner Wrench\" href=\"https:\/\/www.chemtechsci.com\/products\/welch-826801\" target=\"_blank\" rel=\"noopener noreferrer\"\u003eWelch 826801 Spanner Wrench\u003c\/a\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eAdjustable spanner wrench for Welch Ilmvac Diaphragm washer, use to repair All Welch 4 head and 8 head PTFE Diaphragm Vacuum Pumps.\u003cbr\u003ePumps also require 4mm Allen wrench and 17mm wrench to complete repairs (NOT included)\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e","brand":"Welch","offers":[{"title":"Default Title","offer_id":1188262904,"sku":"Welch 402042‐US","price":552.6,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0755\/2467\/products\/welch-402042-us-service-kit-for-2054-2052-4-head-vacuum-pump-25466545340565.jpg?v=1779796789"},{"product_id":"welch-402043-us-service-kit-for-2064-2067-2062-2163-8-head-vacuum-pump","title":"Welch 402043‐US SERVICE KIT, for 2064\/2067\/2062\/2163 (8‐head) Vacuum Pump","description":"\u003cp\u003eWelch 402043‐US SERVICE KIT, for 2064\/2067\/2062\/2163 (8‐head) Vacuum Pump - Complete diaphragm, valve and o-ring replacement kit\u003c\/p\u003e","brand":"Welch","offers":[{"title":"Default Title","offer_id":1188266612,"sku":"402043‐US","price":1113.3,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0755\/2467\/products\/welch-402043-us-service-kit-for-2064-2067-2062-2163-8-head-vacuum-pump-17338663008.jpg?v=1779796211"},{"product_id":"welch-2522k-03-service-kit-for-2522-vacuum-pump","title":"Welch 2522K-03, SERVICE KIT FOR 2522","description":"\u003cp\u003eWelch 2522K-03 is the comprehensive repair kit for the Welch 2522 model vacuum pump.\u003c\/p\u003e\n\u003cp\u003eThe Welch 2522 model vacuum pump is usually in-house serviceable using this comprehensive repair kit. \u003c\/p\u003e\n\u003cp\u003eGenuine Welch factory OEM repair kit. Please contact your Chemtech Scientific Vacuum Pump Expert for individual parts.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e","brand":"Welch","offers":[{"title":"Default Title","offer_id":1188275780,"sku":"2522K-03","price":251.1,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0755\/2467\/products\/welch-2522k-03-service-kit-for-2522-24603864400021.png?v=1779797070"},{"product_id":"welch-2534k-03-service-kit-for-2534-vacuum-pump","title":"Welch 2534K-03, SERVICE KIT, for 2534 Vacuum Pump","description":"\u003cp\u003eWelch 2534K-03 SERVICE KIT- Genuine Welch factory OEM repair kit. Please contact your Chemtech Scientific Vacuum Pump Expert for individual parts.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e","brand":"Welch","offers":[{"title":"Default Title","offer_id":1188279204,"sku":null,"price":251.1,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0755\/2467\/products\/welch-2534k-03-service-kit-for-2534-vacuum-pump-25479522254997.jpg?v=1779796792"},{"product_id":"welch-2522k-04-seal-service-kit-2522-34-45","title":"Welch 2522K-04, SEAL SERVICE KIT 2522,34,45","description":"\u003cp\u003eGenuine Welch factory OEM repair kit. Please contact your Chemtech Scientific Vacuum Pump Expert for individual parts.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e","brand":"Welch","offers":[{"title":"Default Title","offer_id":1188286412,"sku":"2522K-04","price":143.1,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0755\/2467\/products\/welch-2522k-04-seal-service-kit-2522-34-45-25479551123605.jpg?v=1779794339"},{"product_id":"welch-1420h-20-acid-neutralization-trap","title":"Welch 1420H-20, Acid Neutralization Trap","description":"\u003cp\u003eACID NEUTRALIZATION TRAP 9.5\" SUMP NW25\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0231\/7685\/files\/Acid_neutralization_trap_table_1024x1024.jpg?19296\"\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e","brand":"Welch","offers":[{"title":"Default Title","offer_id":1198073756,"sku":null,"price":632.7,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0755\/2467\/products\/welch-1420h-20-acid-neutralization-trap-17435263072.jpg?v=1779796791"},{"product_id":"welch-replacement-element-1420e-01","title":"Welch Replacement Element 1420E-01","description":"\u003cp\u003e\u003cimg src=\"\/\/cdn.shopify.com\/s\/files\/1\/0231\/7685\/files\/Acid_neutralization_trap_table_1024x1024.jpg?19296\"\u003e\u003c\/p\u003e\n\u003cp\u003e Welch Replacement Element 1420E-01\u003c\/p\u003e","brand":"Welch","offers":[{"title":"Default Title","offer_id":1198082868,"sku":null,"price":194.4,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0755\/2467\/products\/welch-replacement-element-1420e-01-7592586379360.png?v=1779796204"},{"product_id":"welch-1420e-03","title":"Welch 1420E-03","description":"\u003cp\u003eWelch 1420E-03 FILTER ELEMENT ASSEMBLY\u003c\/p\u003e","brand":"Welch","offers":[{"title":"Default Title","offer_id":1198088584,"sku":null,"price":245.7,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0755\/2467\/products\/welch-1420e-03-17435459680.jpg?v=1779797067"},{"product_id":"welch-1420h-01-hose-adapter-kit","title":"Welch 1420H-01, Hose Adapter Kit","description":"\u003cp\u003eHOSE ADAPTER KITS\u003c\/p\u003e\u003cp\u003e Connect vacuum pump to application appliances of different size fittings.\u003c\/p\u003e\u003cp\u003e• Kits ensure proper sized tubing adaptors, and clamps for vacuum tight connections\u003c\/p\u003e\u003cp\u003e• Kits include at least 5 ft.(1.5m) of thick walled rubber vacuum hose\u003c\/p\u003e\u003cp\u003eAdapter Kits For Pump Models\u003c\/p\u003e\u003cp\u003ePump Inlet O.D.\u003c\/p\u003e\u003cp\u003eAppliance Connector O.D. CAT. No. 8890 (GEM) 3\/8\" 7\/16\" and 1\/2\" 1420H-01 1400, 1405, 1399, 8905 7\/16\" 1\/4\" and 3\/8\" 1420H-01 1402, 1380, 8907, 8912, 8917, 8920, 8925 13\/16\" 1\/4\" and 3\/8\" 1420H-02\u003c\/p\u003e\u003cp\u003e   \u003cstrong\u003eAdapter Kits For Pump Models\u003c\/strong\u003e \u003cstrong\u003ePump Inlet O.D.\u003c\/strong\u003e \u003cstrong\u003eAppliance Connector O.D.\u003c\/strong\u003e \u003cstrong\u003eCAT. No\u003c\/strong\u003e   8890 (GEM) 3\/8\" 7\/16\" and 1\/2\" 1420H-01   1400, 1405, 1399, 8905 7\/16\" 1\/4\" and 3\/8\" 1420H-01   1402, 1380, 8907, 8912, 8917, 8920, 8925 13\/16\" 1\/4\" and 3\/8\" 1420H-02    \u003c\/p\u003e\u003cp\u003e \u003c\/p\u003e","brand":"Welch","offers":[{"title":"Default Title","offer_id":1204373016,"sku":null,"price":251.1,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0755\/2467\/products\/welch-1420h-01-hose-adapter-kit-25487597731989.jpg?v=1779793946"},{"product_id":"welch-1420h-02-hose-adapter-kit","title":"Welch 1420H-02, Hose Adapter Kit","description":"\u003cp\u003eHOSE ADAPTER KITS\u003c\/p\u003e\n\u003cp\u003e Connect vacuum pump to application appliances of differet size fittings.\u003c\/p\u003e\n\u003cp\u003e•  Kits ensure proper sized tubing adaptors,  and clamps for vacuum tight connections\u003c\/p\u003e\n\u003cp\u003e•  Kits include at least 5 ft.(1.5m) of  thick walled rubber vacuum hose\u003c\/p\u003e\n\u003cp\u003eAdapter Kits For Pump Models\u003cbr\u003ePump Inlet O.D.\u003cbr\u003eAppliance Connector O.D. CAT. No. 8890 (GEM) 3\/8\" 7\/16\" and 1\/2\" 1420H-01 1400, 1405, 1399, 8905 7\/16\" 1\/4\" and 3\/8\" 1420H-01 1402, 1380, 8907, 8912, 8917,  8920, 8925 13\/16\" 1\/4\" and 3\/8\" 1420H-02\u003c\/p\u003e\n\u003ctable width=\"651\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd width=\"254\"\u003e\u003cstrong\u003eAdapter Kits For Pump Models\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd width=\"106\"\u003e\u003cstrong\u003ePump Inlet O.D.\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd width=\"227\"\u003e\u003cstrong\u003eAppliance Connector O.D.\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd width=\"64\"\u003e\u003cstrong\u003eCAT. No\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e8890 (GEM)\u003c\/td\u003e\n\u003ctd\u003e3\/8\"\u003c\/td\u003e\n\u003ctd\u003e7\/16\" and 1\/2\"\u003c\/td\u003e\n\u003ctd\u003e1420H-01\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e1400, 1405, 1399, 8905\u003c\/td\u003e\n\u003ctd\u003e7\/16\"\u003c\/td\u003e\n\u003ctd\u003e1\/4\" and 3\/8\"\u003c\/td\u003e\n\u003ctd\u003e1420H-01\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e1402, 1380, 8907, 8912, 8917, 8920, 8925\u003c\/td\u003e\n\u003ctd\u003e13\/16\"\u003c\/td\u003e\n\u003ctd\u003e1\/4\" and 3\/8\"\u003c\/td\u003e\n\u003ctd\u003e1420H-02\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e","brand":"Welch","offers":[{"title":"Default Title","offer_id":1204497992,"sku":null,"price":251.1,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0755\/2467\/products\/welch-1420h-02-hose-adapter-kit-25487596454037.jpg?v=1779796181"},{"product_id":"welch-1371a-01-belt-guard-base-kit","title":"Welch 1371A-01, Belt Guard \u0026 Base Kit","description":"\u003cp\u003eWelch 1371A-01 Belt Guard \u0026amp; Base Kit - BELT GRD \u0026amp; BASE KIT FOR 1402, 1376, 1380\u003c\/p\u003e","brand":"Welch","offers":[{"title":"Default Title","offer_id":1207925904,"sku":null,"price":777.6,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0755\/2467\/products\/welch-1371a-01-belt-guard-base-kit-17538547808.png?v=1779794335"},{"product_id":"welch-1371e-belt-guard-base-kit","title":"Welch 1371E, Belt Guard \u0026 Base Kit","description":"\u003cp\u003eBLT GRD\u0026amp;BASE KIT 1392\/1400-10\u003c\/p\u003e","brand":"Welch","offers":[{"title":"Default Title","offer_id":1207925912,"sku":null,"price":666.9,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0755\/2467\/products\/welch-1371e-belt-guard-base-kit-17538580576.png?v=1779796646"},{"product_id":"welch-1371f-belt-guard-and-base-kit-1374-1397","title":"Welch 1371F, Belt Guard and Base Kit 1374\/1397","description":"\u003cp\u003eBELT GRD and BASE KIT 1374\/1397\u003c\/p\u003e","brand":"Welch","offers":[{"title":"Default Title","offer_id":1207925916,"sku":null,"price":753.3,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0755\/2467\/products\/welch-1371f-belt-guard-and-base-kit-1374-1397-25494108438677.jpg?v=1779794336"},{"product_id":"welch-1373k-05-minor-repair-kit-for-crr1-1373","title":"Welch 1373K-05, Minor Repair Kit for CRR1 \u0026 1373","description":"\u003cp dir=\"auto\" style=\"white-space: pre-wrap;\" bis_size='{\"x\":12,\"y\":9,\"w\":560,\"h\":78,\"abs_x\":621,\"abs_y\":271}'\u003eThe Welch 1373K-05 Minor Repair Kit is a genuine OEM maintenance kit designed for the Welch 1373 and CRR1 rotary vane vacuum pumps. This kit provides essential components for routine minor repairs and preventive maintenance, helping restore performance and extend pump life.\u003c\/p\u003e\n\u003cp dir=\"auto\" style=\"white-space: pre-wrap;\" bis_size='{\"x\":12,\"y\":103,\"w\":560,\"h\":39,\"abs_x\":621,\"abs_y\":365}'\u003e\u003cstrong bis_size='{\"x\":12,\"y\":103,\"w\":36,\"h\":19,\"abs_x\":621,\"abs_y\":365}'\u003eNote:\u003c\/strong\u003e This minor kit does \u003cstrong bis_size='{\"x\":173,\"y\":103,\"w\":22,\"h\":19,\"abs_x\":782,\"abs_y\":365}'\u003enot\u003c\/strong\u003e include vanes (blades). Vanes are only included in the Major Repair Kit.\u003c\/p\u003e\n\u003cp dir=\"auto\" style=\"white-space: pre-wrap;\" bis_size='{\"x\":12,\"y\":159,\"w\":560,\"h\":19,\"abs_x\":621,\"abs_y\":421}'\u003e\u003cstrong bis_size='{\"x\":12,\"y\":159,\"w\":84,\"h\":19,\"abs_x\":621,\"abs_y\":421}'\u003eKit Contents:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul dir=\"auto\" bis_size='{\"x\":12,\"y\":194,\"w\":560,\"h\":78,\"abs_x\":621,\"abs_y\":456}'\u003e\n\u003cli bis_size='{\"x\":52,\"y\":194,\"w\":520,\"h\":19,\"abs_x\":661,\"abs_y\":456}'\u003eValve springs\u003c\/li\u003e\n\u003cli bis_size='{\"x\":52,\"y\":214,\"w\":520,\"h\":19,\"abs_x\":661,\"abs_y\":476}'\u003eGaskets and O-rings\u003c\/li\u003e\n\u003cli bis_size='{\"x\":52,\"y\":233,\"w\":520,\"h\":19,\"abs_x\":661,\"abs_y\":495}'\u003eShaft seals\u003c\/li\u003e\n\u003cli bis_size='{\"x\":52,\"y\":253,\"w\":520,\"h\":19,\"abs_x\":661,\"abs_y\":515}'\u003eNecessary hardware\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp dir=\"auto\" style=\"white-space: pre-wrap;\" bis_size='{\"x\":12,\"y\":287,\"w\":560,\"h\":39,\"abs_x\":621,\"abs_y\":549}'\u003eGenuine Welch factory OEM repair kit. Please contact your Chemtech Scientific Vacuum Pump Expert for individual parts.\u003c\/p\u003e\n\u003cp dir=\"auto\" style=\"white-space: pre-wrap;\" bis_size='{\"x\":12,\"y\":342,\"w\":560,\"h\":58,\"abs_x\":621,\"abs_y\":604}'\u003eIdeal for pumps showing early signs of wear or after 4,000–6,000 hours of operation. Regular use of the 1373K-05 Minor Repair Kit helps maintain optimal vacuum levels, reduces noise and vibration, and prevents more costly major repairs.\u003c\/p\u003e\n\u003cp dir=\"auto\" style=\"white-space: pre-wrap;\" bis_size='{\"x\":12,\"y\":417,\"w\":560,\"h\":39,\"abs_x\":621,\"abs_y\":679}'\u003eKeep your Welch 1373 and CRR1 vacuum pumps running efficiently with authentic parts from Chemtech Scientific.\u003c\/p\u003e\n\u003cp dir=\"auto\" style=\"white-space: pre-wrap;\" bis_size='{\"x\":12,\"y\":472,\"w\":560,\"h\":39,\"abs_x\":621,\"abs_y\":734}'\u003e\u003cstrong bis_size='{\"x\":12,\"y\":472,\"w\":251,\"h\":19,\"abs_x\":621,\"abs_y\":734}'\u003eNeed a Major Repair Kit or assistance?\u003c\/strong\u003e Email \u003cstrong bis_size='{\"x\":303,\"y\":472,\"w\":177,\"h\":19,\"abs_x\":912,\"abs_y\":734}'\u003e\u003ca href=\"mailto:support@chemtechsci.com\" rel=\"noopener noreferrer nofollow\" bis_size='{\"x\":303,\"y\":472,\"w\":177,\"h\":19,\"abs_x\":912,\"abs_y\":734}' target=\"_blank\"\u003esupport@chemtechsci.com\u003c\/a\u003e\u003c\/strong\u003e or call \u003cstrong bis_size='{\"x\":12,\"y\":472,\"w\":552,\"h\":38,\"abs_x\":621,\"abs_y\":734}'\u003e(484) 424-9415\u003c\/strong\u003e.\u003c\/p\u003e","brand":"Welch","offers":[{"title":"Default Title","offer_id":1207925920,"sku":null,"price":561.6,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0755\/2467\/products\/welch-1373k-05-minor-repair-kit-for-crr1-1373-17538646112.png?v=1779794335"},{"product_id":"welch-1373k-06-major-repair-kit-crr-1-1373","title":"Welch 1373K-06 MAJOR REPAIR KIT CRR-1 \u0026 1373","description":"\u003cp dir=\"auto\" style=\"white-space: pre-wrap;\" bis_size='{\"x\":12,\"y\":9,\"w\":575,\"h\":78,\"abs_x\":621,\"abs_y\":271}'\u003eThe Welch 1373K-06 Major Repair Kit is a complete overhaul kit designed for the Welch 1373 and CRR-1 rotary vane vacuum pumps. This high-quality kit includes all major components needed for a full rebuild, restoring your pump to like-new performance and significantly extending its service life.\u003c\/p\u003e\n\u003cp dir=\"auto\" style=\"white-space: pre-wrap;\" bis_size='{\"x\":12,\"y\":103,\"w\":575,\"h\":19,\"abs_x\":621,\"abs_y\":365}'\u003e\u003cstrong bis_size='{\"x\":12,\"y\":103,\"w\":84,\"h\":19,\"abs_x\":621,\"abs_y\":365}'\u003eKit Contents:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul dir=\"auto\" bis_size='{\"x\":12,\"y\":139,\"w\":575,\"h\":117,\"abs_x\":621,\"abs_y\":401}'\u003e\n\u003cli bis_size='{\"x\":52,\"y\":139,\"w\":535,\"h\":19,\"abs_x\":661,\"abs_y\":401}'\u003eVanes (blades)\u003c\/li\u003e\n\u003cli bis_size='{\"x\":52,\"y\":159,\"w\":535,\"h\":19,\"abs_x\":661,\"abs_y\":421}'\u003eValve springs and retainers\u003c\/li\u003e\n\u003cli bis_size='{\"x\":52,\"y\":178,\"w\":535,\"h\":19,\"abs_x\":661,\"abs_y\":440}'\u003eGaskets and O-rings\u003c\/li\u003e\n\u003cli bis_size='{\"x\":52,\"y\":198,\"w\":535,\"h\":19,\"abs_x\":661,\"abs_y\":460}'\u003eShaft seals\u003c\/li\u003e\n\u003cli bis_size='{\"x\":52,\"y\":217,\"w\":535,\"h\":19,\"abs_x\":661,\"abs_y\":479}'\u003eBearings (where applicable)\u003c\/li\u003e\n\u003cli bis_size='{\"x\":52,\"y\":237,\"w\":535,\"h\":19,\"abs_x\":661,\"abs_y\":499}'\u003eAll necessary hardware and seals\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp dir=\"auto\" style=\"white-space: pre-wrap;\" bis_size='{\"x\":12,\"y\":271,\"w\":575,\"h\":39,\"abs_x\":621,\"abs_y\":533}'\u003eGenuine Welch factory OEM repair kit. Please contact your Chemtech Scientific Vacuum Pump Expert for individual parts.\u003c\/p\u003e\n\u003cp dir=\"auto\" style=\"white-space: pre-wrap;\" bis_size='{\"x\":12,\"y\":326,\"w\":575,\"h\":58,\"abs_x\":621,\"abs_y\":588}'\u003eIdeal for pumps with high operating hours, reduced vacuum performance, increased noise, or oil leaks. Recommended after 8,000–12,000 hours of use. Regular major repairs help maintain optimal vacuum levels, reduce vibration, and prevent costly downtime.\u003c\/p\u003e\n\u003cp dir=\"auto\" style=\"white-space: pre-wrap;\" bis_size='{\"x\":12,\"y\":401,\"w\":575,\"h\":39,\"abs_x\":621,\"abs_y\":663}'\u003eKeep your Welch 1373 and CRR-1 vacuum pumps running at peak efficiency with authentic Welch parts from Chemtech Scientific.\u003c\/p\u003e\n\u003cp dir=\"auto\" style=\"white-space: pre-wrap;\" bis_size='{\"x\":12,\"y\":456,\"w\":575,\"h\":19,\"abs_x\":621,\"abs_y\":718}'\u003e\u003cstrong bis_size='{\"x\":12,\"y\":456,\"w\":153,\"h\":19,\"abs_x\":621,\"abs_y\":718}'\u003eNeed repair assistance?\u003c\/strong\u003e Email \u003cstrong bis_size='{\"x\":205,\"y\":456,\"w\":177,\"h\":19,\"abs_x\":814,\"abs_y\":718}'\u003e\u003ca href=\"mailto:support@chemtechsci.com\" rel=\"noopener noreferrer nofollow\" bis_size='{\"x\":205,\"y\":456,\"w\":177,\"h\":19,\"abs_x\":814,\"abs_y\":718}' target=\"_blank\"\u003esupport@chemtechsci.com\u003c\/a\u003e\u003c\/strong\u003e or call \u003cstrong bis_size='{\"x\":428,\"y\":456,\"w\":100,\"h\":19,\"abs_x\":1037,\"abs_y\":718}'\u003e(484) 424-9415\u003c\/strong\u003e.\u003c\/p\u003e","brand":"Welch","offers":[{"title":"Default Title","offer_id":1207925924,"sku":null,"price":744.3,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0755\/2467\/products\/welch-1373k-06-major-repair-kit-crr-1-1373-17538678880.png?v=1779796646"},{"product_id":"welch-1374a-belt-kit-for-1374-vacuum-pump","title":"Welch 1374A, Belt Kit for 1374 Vacuum Pump","description":"\u003cp\u003eBELT KIT FOR 1374 PUMP\u003c\/p\u003e","brand":"Welch","offers":[{"title":"Default Title","offer_id":1207925928,"sku":null,"price":77.4,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0755\/2467\/products\/welch-1374a-belt-kit-for-1374-vacuum-pump-25494089203861.jpg?v=1779796178"},{"product_id":"welch-1393f-iso-adapter-nw-16-for-1399-1400","title":"Welch 1393F, ISO Adapter NW 16 for 1399 \u0026 1400","description":"\u003cp\u003eISO ADAPTER NW 16 FOR 1399 \u0026amp; 1400\u003c\/p\u003e","brand":"Welch","offers":[{"title":"Default Title","offer_id":1207925932,"sku":null,"price":75.05,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0755\/2467\/products\/welch-1393f-iso-adapter-nw-16-for-1399-1400-25489848991893.jpg?v=1779793934"},{"product_id":"welch-1393g-iso-adapter-nw25-for-1405-1402-1376","title":"Welch 1393G, ISO Adapter NW25 for 1405, 1402, 1376","description":"\u003cp\u003eISO ADAPTER NW25 FOR 1405, 1402, 1376\u003c\/p\u003e\n\u003cp\u003eExhaust connector, 1-20\" thread to NW 25 ISO, stainless steel\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp style=\"text-align: left;\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0231\/7685\/files\/Exhaust_Hose_Connectors_grande.jpg?19156\"\u003e\u003c\/p\u003e\n\u003cp style=\"text-align: left;\"\u003e \u003c\/p\u003e","brand":"Welch","offers":[{"title":"Default Title","offer_id":1207925936,"sku":"1393G","price":127.3,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0755\/2467\/products\/welch-1393g-iso-adapter-nw25-for-1405-1402-1376-25489843716245.jpg?v=1779794324"},{"product_id":"welch-1393h-iso-adapter-nw-40-for-1397-1374","title":"Welch 1393H, ISO Adapter NW 40 for 1397, 1374","description":"\u003cp\u003eISO ADAPTER NW 40 FOR 1397, 1374; 1 3\/4-20\" thread to NW 40 connector, stainless steel  \u003c\/p\u003e","brand":"Welch","offers":[{"title":"Default Title","offer_id":1207925940,"sku":null,"price":177.65,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0755\/2467\/products\/welch-1393h-iso-adapter-nw-40-for-1397-1374-25489839030421.jpg?v=1779794339"}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0755\/2467\/collections\/vacuum-pump-accessories-8191643.jpg?v=1777237005","url":"https:\/\/www.chemtechsci.com\/collections\/vacuum-pump-accessories.oembed","provider":"Chemtech Scientific Incorporated","version":"1.0","type":"link"}