{"product_id":"pentair-8-5-buttress-thread-valve-adapter","title":"Pentair 8.5\" Buttress Thread Valve Adapter","description":"\u003cdiv class=\"container\"\u003eThe Pentair 8.5\" Buttress Thread Valve Adapter (part number 154570) is a heavy-duty plumbing transition fitting engineered specifically for high-capacity Pentair Tagelus top-mount sand filtration systems, such as the TA100D, utilizing large-diameter multiport control valves. Injection-molded from a thick-walled, high-impact polymer composite, this adapter features coarse 8.5-inch buttress threading designed to spin directly onto the wide structural neck of the fiberglass sand filter tank. Its primary structural role is to establish a secure mechanical bridge between the large filter shell and the multiport backwash valve, while its integrated compression channel accommodates a heavy-duty O-ring to guarantee an absolute airtight and watertight seal. Built to withstand continuous hydraulic pressure up to 50 PSI, extreme outdoor UV weathering, and constant exposure to corrosive pool chemicals like chlorine and acid, this adapter prevents dangerous external leakage at the tank's main interface. Despite its thick-walled, pressure-rated design, this plumbing component remains highly manageable for field replacements, carrying a net product and shipping weight of approximately \u003cb data-path-to-node=\"0\" data-index-in-node=\"1189\"\u003e1.10 pounds\u003c\/b\u003e (about 17.6 ounces).\u003cbr\u003e\u003c!----\u003e\n\u003c\/div\u003e","brand":"Commercial Pool and Spa Supplies","offers":[{"title":"Default Title","offer_id":53327025143919,"sku":"154521","price":124.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0678\/3785\/3807\/files\/21zRCTcJucL.jpg?v=1782229336","url":"https:\/\/commercialpoolandspasupplies.com\/products\/pentair-8-5-buttress-thread-valve-adapter","provider":"Commercial Pool and Spa Supplies ","version":"1.0","type":"link"}