{"product_id":"cover-o-ring-3","title":"Pentair Cover O-Ring for 1-1\/2 inch TM-12 and SM-10 Valves","description":"\u003cp\u003eThe Pentair 271103 is the cover o-ring for 1-1\/2 inch TM-12 and SM-10 valves. It measures 5-1\/4 inch inside diameter with a 1\/8 inch cross section.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhere it sits\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eA multiport valve is two castings clamped together, and this o-ring is the seal between the valve body and the cover on top of it. When it flattens or takes a set, water finds its way past the top of the valve and shows up as a drip or a wet spot at the filter that has nothing to do with the spider gasket everyone suspects first.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eFitting it\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eThe o-ring is worth changing whenever the cover comes off for other work, since it costs little next to a second teardown. Fit it with a pool rated silicone lubricant, never a petroleum grease. Note that the valve body gasket is a separate part, so identify which seal is leaking before you order.\u003c\/p\u003e","brand":"Pentair","offers":[{"title":"Default Title","offer_id":48634707214548,"sku":"PAC-061-7499","price":20.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0801\/9568\/2516\/files\/default_2ddc7724-ce39-498b-802d-a2c063d272c7.jpg?v=1788836453","url":"https:\/\/www.activepoolsupply.com\/products\/cover-o-ring-3","provider":"Active Pool Supply","version":"1.0","type":"link"}