{"product_id":"o-ring-bulkhead","title":"Pentair Genuine OEM Bulkhead O-Ring","description":"\u003cp\u003eThe Pentair 192320 is the genuine upper bulkhead O-Ring for 2 inch bulkhead fittings on Pentair filters. It is a size 2-137 ring molded in 70 shore Buna N, with a 2-1\/4 inch inside diameter and a 3\/16 inch cross section.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhere it goes\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eBulkhead fittings are the threaded ports where plumbing enters and leaves the filter tank. Each one seals against the tank with an O-Ring, and this is the upper of those seals. Pentair uses it across the Clean and Clear Plus cartridge filter, the FNS and FNS Plus filters, and the Nautilus Plus.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhen to replace it\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eRubber hardens with heat, chlorine and time. Once the ring takes a permanent set or splits, the fitting weeps whenever the pump is running, and no amount of tightening will stop it. Replacing the seal is a few minutes of work and it is worth lubricating the new ring with a silicone pool lube before assembly.\u003c\/p\u003e","brand":"Pentair","offers":[{"title":"Default Title","offer_id":48628786200788,"sku":"PAC-051-2935","price":9.06,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0801\/9568\/2516\/files\/default_712b21a2-66c7-4569-8100-b30d44a1722b.png?v=1788750656","url":"https:\/\/www.activepoolsupply.com\/products\/o-ring-bulkhead","provider":"Active Pool Supply","version":"1.0","type":"link"}