{"product_id":"o-ring-diffuser","title":"Pentair Genuine OEM High Flow Diffuser O-Ring","description":"\u003cp\u003eThe Pentair 355030 is the high flow diffuser o-ring, a square profile ring measuring 3-1\/8 in. outside diameter by 2-3\/4 in. inside diameter. It is the genuine Pentair part.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eSquare, not round\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eThe groove in these pumps is cut for a square cross section. A round o-ring of similar diameter will sit proud, roll under load, and never seal properly, so it is worth ordering the correct part rather than substituting from a drawer of assorted rings.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhich pumps\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003ePentair Pinnacle High Flow in-ground pumps, SuperFlo, Challenger High Flow and the Sta-Rite SuperMax.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat it does\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eThe diffuser sits over the impeller and turns velocity into pressure. This ring seals it to the housing so all the flow is forced through the impeller eye. When it hardens and flattens, water bypasses the impeller, and the pump loses head while the motor sounds exactly as it always has.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eFitting\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eClean the groove, fit the new ring dry into a clean seat, and give it a thin film of silicone o-ring lubricant so it stays put as the pump goes back together.\u003c\/p\u003e","brand":"Pentair","offers":[{"title":"Default Title","offer_id":48625722491092,"sku":"PAC-101-3107","price":18.26,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0801\/9568\/2516\/files\/default_e560ccec-0868-429d-ab16-13b9e377ee29.png?v=1788690028","url":"https:\/\/www.activepoolsupply.com\/products\/o-ring-diffuser","provider":"Active Pool Supply","version":"1.0","type":"link"}