{"product_id":"strainer-air-vent","title":"Pentair Genuine OEM Strainer Air Vent","description":"\u003cp\u003eThe Pentair 172855 is the genuine OEM air relief strainer, the 3\/4 inch screen used at the air relief point on PacFab DE filters. It fits the OEM manifold on most FNS, FSH, Nautilus and Nautilus Plus filters.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat it is\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eThe part is a round metal mesh screen bonded to a rubber base. The mesh is close to what you would find in a screen door: fine enough to hold filter media back, open enough to let air pass. It is a small part doing an unglamorous job, and when it tears or packs solid the air relief stops working properly.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eGetting the right one\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003ePentair builds three screens in this style. They look alike, but each is matched to a different tube size, so both the outside dimensions and the hole in the bottom of the rubber base differ. This one measures 1-3\/4 inch in diameter and 1-1\/2 inch high, with a 3\/4 inch hole. Measure the one you are pulling out before you order, since the two other versions will not seal correctly on the wrong tube.\u003c\/p\u003e","brand":"Pentair","offers":[{"title":"Default Title","offer_id":48626303992020,"sku":"PAC-051-9954","price":30.1,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0801\/9568\/2516\/files\/default_726c9575-4fd4-43f3-ab65-70a9b0d873da.png?v=1788707938","url":"https:\/\/www.activepoolsupply.com\/products\/strainer-air-vent","provider":"Active Pool Supply","version":"1.0","type":"link"}