{"product_id":"o-ring-bulkhead-upper-lower","title":"Pentair O-Ring, Bulkhead Upper and Lower","description":"\u003cp\u003eThe Pentair 86006900 is the bulkhead o-ring used in both the upper and the lower bulkhead positions. It is the genuine Pentair part.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhere it goes\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eIt appears in the parts listings for the Pentair Clean and Clear Plus cartridge filter and for the American Products Titan RPM DE and Quantum RPM cartridge filters. The bulkhead is the port fitting through the tank wall, and this o-ring is what keeps water on the inside of it.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhen to change it\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eO-rings harden, flatten and take a set. Once one has, it will pass a slow weep no matter how carefully the fitting is tightened, and overtightening to chase the leak only cracks the plastic around it. Change the o-ring any time the bulkhead is disturbed, and lubricate the new one with a silicone based o-ring grease rather than anything petroleum based.\u003c\/p\u003e","brand":"Pentair","offers":[{"title":"Default Title","offer_id":48625742938324,"sku":"AMP-051-4023","price":9.39,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0801\/9568\/2516\/files\/default_4431e51a-0594-4a76-81f8-b9ce3db14775.gif?v=1788690537","url":"https:\/\/www.activepoolsupply.com\/products\/o-ring-bulkhead-upper-lower","provider":"Active Pool Supply","version":"1.0","type":"link"}