{"product_id":"o-ring-1-5-8-id","title":"Sta-Rite O-Ring for System 3 Cartridge Filters","description":"\u003cp\u003eThe Sta-Rite 35505-1429 is an O-ring listed for the System 3 SM cartridge filters, measuring 1-5\/8 inches inside diameter with a 1\/8 inch cross section.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eFitment\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eIt is listed for the System 3 SM models S7M120, S7M400, S8M150 and S8M500. Because the two dimensions are published, you can measure the ring you are replacing and confirm the match before ordering rather than guessing from a picture.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhen to change it\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eO-rings do not usually fail suddenly. They harden with heat and chemical exposure, take a permanent set in the shape of the groove, and then one day the joint weeps. Renewing them whenever the filter is open costs very little compared with chasing a leak later in the season.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eAssembly\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eClean the groove, wipe the ring, and use a silicone based O-ring lubricant. Lubricant is not there to help it seal; it is there to let the ring slide into place without being pinched or twisted as the parts come together.\u003c\/p\u003e","brand":"Sta-Rite","offers":[{"title":"Default Title","offer_id":48628843479252,"sku":"STA-051-2948","price":10.08,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0801\/9568\/2516\/files\/default_97ecac9c-e291-43d0-9e39-aaa895b3aa6b.gif?v=1788755166","url":"https:\/\/www.activepoolsupply.com\/products\/o-ring-1-5-8-id","provider":"Active Pool Supply","version":"1.0","type":"link"}