{"product_id":"pentair-475615-kit-eti400-hx-gaskets-replacement","title":"Pentair Heat Exchanger and Chimney Gaskets for ETi 400 Heater, 475615Z","description":"\u003cp\u003eThe Pentair 475615Z is the genuine heat exchanger and chimney gasket kit for the ETi 400 pool heater. It replaces the seals at both of those joints in one part number.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat these gaskets seal\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eThe heat exchanger and the chimney sit on the combustion side of the heater, where flue gas is kept apart from the water path and directed out of the unit. The gaskets at those joints do that separating. When they harden, crush unevenly or tear, the heater can leak combustion products where they do not belong, and efficiency drops along with it.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eFit new gaskets, do not reuse old ones\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eA gasket takes a permanent set the first time it is torqued down and heat cycled. Reinstalling one after the joint has been opened rarely gives a proper seal, and the failure shows up later as a leak that is much harder to trace. Plan on this kit any time the heat exchanger or chimney comes apart on an ETi 400.\u003c\/p\u003e","brand":"Pentair","offers":[{"title":"Default Title","offer_id":48626306973908,"sku":"PUR-151-0310","price":308.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0801\/9568\/2516\/files\/default_045c942c-ec1d-4f7e-abac-be50ef2226c0.png?v=1788707973","url":"https:\/\/www.activepoolsupply.com\/products\/pentair-475615-kit-eti400-hx-gaskets-replacement","provider":"Active Pool Supply","version":"1.0","type":"link"}