{"product_id":"m-g4370-p-or-bi-iso-b90","title":"ISO 3601 G4370 Buna-N Nitrile (90A) Metric O-Ring, 90A Durometer, 437mm ID x 7mm CS (17.205\" x 0.276\", 451mm OD) - Precision-Molded Replacement Sealing Ring for Pumps, Valves \u0026 Fittings","description":"\u003cp\u003eChasing a leak or a slow drip and need the exact metric o-ring size to seal it for good? A worn or wrong-size o-ring lets fluid weep past the joint, drops pressure, and can damage the equipment around it.\u003c\/p\u003e\u003cbr\u003e\u003cp\u003eThis Beaver Island Parts Company replacement o-ring is a single ISO 3601 G4370 o-ring, a standard metric sealing size measuring 437mm inside diameter by 7mm cross-section (17.205\" ID x 0.276\" CS, 451mm outer diameter), molded in 90A Buna-N Nitrile rubber.\u003c\/p\u003e\u003cbr\u003e\u003cb\u003eFull Compatibility:\u003c\/b\u003e ISO 3601 G4370 is an international-standard o-ring size used across pumps, valves, filters, fittings and machinery worldwide. If your application calls for a 437mm x 7mm o-ring, this is the size.\u003cbr\u003e\u003cb\u003eInstallation Note:\u003c\/b\u003e Clean the groove, inspect the sealing surface, seat the new o-ring without twisting it, and lubricate before assembly.\u003cbr\u003e\u003cb\u003ePro Tip:\u003c\/b\u003e Apply \u003ca href=\"https:\/\/beaverislandparts.com\/products\/aqua-flex-food-grade-silicone-lubricant-50g\" target=\"_blank\" rel=\"noopener\"\u003eAqua Flex\u003c\/a\u003e lubricant before installation to ease seating and extend seal life.\u003cbr\u003e\u003cp\u003eWe are an American family-owned and operated small business committed to high-quality replacement parts and honest fitment information.\u003c\/p\u003e","brand":"Beaver Island Parts Company","offers":[{"title":"1 (Single)","offer_id":48609760870605,"sku":"M.G4370.1.OR.BI.ISO.B90","price":13.99,"currency_code":"USD","in_stock":true},{"title":"5-Pack","offer_id":48609760903373,"sku":"M.G4370.5.OR.BI.ISO.B90","price":38.99,"currency_code":"USD","in_stock":true},{"title":"10-Pack","offer_id":48609760936141,"sku":"M.G4370.10.OR.BI.ISO.B90","price":63.99,"currency_code":"USD","in_stock":true},{"title":"25-Pack","offer_id":48609760968909,"sku":"M.G4370.25.OR.BI.ISO.B90","price":149.99,"currency_code":"USD","in_stock":true},{"title":"50-Pack","offer_id":48609761001677,"sku":"M.G4370.50.OR.BI.ISO.B90","price":256.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0611\/8110\/0237\/files\/2026_O-RING_BOX_463_eb7e855c-eef6-4c6b-83da-e306526bfe88.jpg?v=1785880701","url":"https:\/\/beaverislandparts.com\/products\/m-g4370-p-or-bi-iso-b90","provider":"Beaver Island Parts Company","version":"1.0","type":"link"}