{"product_id":"pentair-1-5-and-2-hiflow-top-valve-o-ring","title":"Pentair 1.5\" and 2\" HiFlow Top Valve O-Ring","description":"\u003cp\u003eThe Pentair 1.5\" and 2\" Hi-Flow™ Multiport Top-Mount Valve O-Ring (Product #: 271151 \/ 271151Z) is a factory-original OEM replacement sealing component engineered to establish an absolute, watertight mechanical barrier at the primary junction of high-capacity pool and spa sand filters. Specifically designed to seal the large perimeter flange between the filter tank neck and the bottom of Pentair 1.5-inch and 2-inch top-mount Hi-Flow™ six-position backwash valves—which are commonly paired with Sand Dollar®, Tagelus® (including models TA60D and TA100D), and Cristall-Flo™ series sand filtration vessels—this heavy-duty, large-diameter ring sits securely within a precision-molded seating track. When the heavy-tension flange clamp or bolt assembly is torqued down, the ring compresses uniformly to prevent pressurized water from weeping out of the filter neck and blocks catastrophic suction-side air induction under continuous system operating line pressures up to 50 PSI. Molded from a premium, high-grade ethylene propylene diene monomer (EPDM) rubber compound featuring a 70-durometer hardness rating, this elastomeric seal delivers exceptional dimensional compression memory and superior ozone resistance, allowing it to withstand continuous exposure to high chlorine or bromine shock, salt-chlorine generation, and intense outdoor UV radiation without flattening, tearing, or dry-rotting under extreme seasonal equipment pad heat. The physical dry product weight of this single Pentair HiFlow Valve O-Ring is approximately \u003cb data-path-to-node=\"0\" data-index-in-node=\"1533\"\u003e0.06 pounds\u003c\/b\u003e (roughly 0.96 ounces, with a nominal packaged shipping weight of up to 0.15 pounds depending on retail bagging), providing an essential, low-cost hardware standard to maintain peak filtration circulation and baseline energy efficiency.\u003c\/p\u003e\n\u003cp data-path-to-node=\"1\"\u003e \u003c\/p\u003e","brand":"Commercial Pool and Spa Supplies","offers":[{"title":"Default Title","offer_id":53180478357615,"sku":"271103Z","price":12.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0678\/3785\/3807\/files\/fa82cce1-599b-40c3-99b1-54a9e4f58c2a_1.4333a4944ecb397af08f5aa26e9209ed__94866_44771d47-98f6-4c4a-9ba4-f4a195670b24.jpg?v=1780417247","url":"https:\/\/commercialpoolandspasupplies.com\/products\/pentair-1-5-and-2-hiflow-top-valve-o-ring","provider":"Commercial Pool and Spa Supplies ","version":"1.0","type":"link"}