{"product_id":"o-ring-2-1-8-id-1","title":"Sta-Rite O-Ring 2-1\/8\" ID","description":"\u003cp\u003eSta-Rite 35505-1428 is a replacement o-ring measuring 2-1\/8 inches inside diameter with a 1\/8 inch cross section. It is listed under Sta-Rite System 3 cartridge filter parts, covering models S7M120, S7M400, S8M150 and S8M500, and is identified in the listing as the large elbow o-ring.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eSize is the whole story\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eAn o-ring that is close but not correct will seem to seal on assembly and weep under pressure. Check both numbers against the ring you are replacing: 2-1\/8 inches across the inside, 1\/8 inch thick.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhile the filter is open\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eSeals harden, flatten and take a permanent set from years of compression. They are the cheapest part in a filter and the most common source of a drip. Any time the filter is apart for a cartridge clean, the o-rings are worth a look.\u003c\/p\u003e","brand":"Sta-Rite","offers":[{"title":"Default Title","offer_id":48627853099220,"sku":"STA-051-2947","price":13.01,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0801\/9568\/2516\/files\/default_7b722fad-3844-4892-82bb-13b6067d03c1.jpg?v=1788728344","url":"https:\/\/www.activepoolsupply.com\/products\/o-ring-2-1-8-id-1","provider":"Active Pool Supply","version":"1.0","type":"link"}