{"product_id":"pentairhighcapacitychlorinatorlidtohousingoringr172240penr172240z","title":"Pentair High Capacity Chlorinator Lid to Housing O-Ring | R172240","description":"\u003cdiv\u003e\n  \u003ch2\u003ePentair Rainbow High Capacity Feeder Lid-to-Housing O-Ring | R172240\u003c\/h2\u003e\n\n  \u003cp\u003e\n    The Pentair R172240 is the replacement \u003cstrong\u003elid-to-housing O-ring\u003c\/strong\u003e used on Pentair Rainbow High Capacity\n    automatic chlorine\/bromine feeders. This seal sits between the feeder lid and the feeder housing to help prevent water\n    leaks and air intrusion that can cause inconsistent feeder operation.\n  \u003c\/p\u003e\n\n  \u003ch3\u003eCompatibility\u003c\/h3\u003e\n  \u003cul\u003e\n    \u003cli\u003e\n\u003cstrong\u003eFits:\u003c\/strong\u003e Pentair Rainbow High Capacity feeders: \u003cstrong\u003eHC-3315\u003c\/strong\u003e, \u003cstrong\u003eHC-3330\u003c\/strong\u003e, \u003cstrong\u003eHC-3340\u003c\/strong\u003e\n\u003c\/li\u003e\n    \u003cli\u003eUsed anywhere the feeder parts diagram calls for the \u003cstrong\u003eR172240\u003c\/strong\u003e lid O-ring\u003c\/li\u003e\n  \u003c\/ul\u003e\n\n  \u003ch3\u003eKey Features\u003c\/h3\u003e\n  \u003cul\u003e\n    \u003cli\u003e\n\u003cstrong\u003eRestores a tight lid seal\u003c\/strong\u003e between the feeder lid and body\u003c\/li\u003e\n    \u003cli\u003e\n\u003cstrong\u003eHelps prevent leaks\u003c\/strong\u003e caused by flattened, swollen, or cracked O-rings\u003c\/li\u003e\n    \u003cli\u003e\n\u003cstrong\u003eReduces air leaks\u003c\/strong\u003e that can affect flow through the feeder\u003c\/li\u003e\n    \u003cli\u003e\n\u003cstrong\u003eDirect replacement\u003c\/strong\u003e for routine maintenance or after lid service\u003c\/li\u003e\n  \u003c\/ul\u003e\n\n  \u003ch3\u003eSpecifications\u003c\/h3\u003e\n  \u003cul\u003e\n    \u003cli\u003e\n\u003cstrong\u003eBrand:\u003c\/strong\u003e Pentair \/ Rainbow\u003c\/li\u003e\n    \u003cli\u003e\n\u003cstrong\u003ePart Number:\u003c\/strong\u003e R172240\u003c\/li\u003e\n    \u003cli\u003e\n\u003cstrong\u003ePart Type:\u003c\/strong\u003e Lid-to-housing O-ring\u003c\/li\u003e\n    \u003cli\u003e\n\u003cstrong\u003eQuantity:\u003c\/strong\u003e Sold individually\u003c\/li\u003e\n    \u003cli\u003e\n\u003cstrong\u003eCommon cross-reference:\u003c\/strong\u003e often listed as O-330 \/ AS568-360 (varies by supplier listing)\u003c\/li\u003e\n  \u003c\/ul\u003e\n\n  \u003ch3\u003eCommon Signs It Needs Replacement\u003c\/h3\u003e\n  \u003cul\u003e\n    \u003cli\u003eWater seepage around the feeder lid\u003c\/li\u003e\n    \u003cli\u003eLid is difficult to seal evenly (O-ring flattened or swollen)\u003c\/li\u003e\n    \u003cli\u003eVisible cracking, nicks, or brittleness\u003c\/li\u003e\n    \u003cli\u003eFeeder output becomes inconsistent after opening\/refilling the unit\u003c\/li\u003e\n  \u003c\/ul\u003e\n\n  \u003ch3\u003eInstallation Notes\u003c\/h3\u003e\n  \u003cul\u003e\n    \u003cli\u003eShut off the pump and relieve system pressure before opening the feeder.\u003c\/li\u003e\n    \u003cli\u003eRemove the lid and lift out the old O-ring.\u003c\/li\u003e\n    \u003cli\u003eClean the O-ring groove and lid sealing surface (remove scale and debris).\u003c\/li\u003e\n    \u003cli\u003eLightly lubricate the new O-ring with a silicone-based lubricant and seat it evenly without twisting.\u003c\/li\u003e\n    \u003cli\u003eReinstall the lid, tighten evenly, restart the system, and check for leaks.\u003c\/li\u003e\n  \u003c\/ul\u003e\n\n  \u003ch3\u003eRelated Products\u003c\/h3\u003e\n  \u003cul\u003e\n    \u003cli\u003e\u003ca href=\"https:\/\/aquapoolsupply.com\/pages\/search-results-page?q=R172240\"\u003eSearch Aqua Pool Supply for R172240\u003c\/a\u003e\u003c\/li\u003e\n    \u003cli\u003e\u003ca href=\"https:\/\/aquapoolsupply.com\/pages\/search-results-page?q=R172036Z\"\u003eSilicone Lubricant for O-rings and seals (R172036Z)\u003c\/a\u003e\u003c\/li\u003e\n    \u003cli\u003e\u003ca href=\"https:\/\/aquapoolsupply.com\/pages\/search-results-page?q=R175009\"\u003eHC Series Hose Bib \/ Drain Valve (R175009)\u003c\/a\u003e\u003c\/li\u003e\n    \u003cli\u003e\u003ca href=\"https:\/\/aquapoolsupply.com\/pages\/search-results-page?q=R172439\"\u003eHC Series Control Valve (R172439)\u003c\/a\u003e\u003c\/li\u003e\n    \u003cli\u003e\u003ca href=\"https:\/\/aquapoolsupply.com\/pages\/search-results-page?q=HC-3315\"\u003eHC-3315 feeder parts\u003c\/a\u003e\u003c\/li\u003e\n    \u003cli\u003e\u003ca href=\"https:\/\/aquapoolsupply.com\/pages\/search-results-page?q=HC-3330\"\u003eHC-3330 feeder parts\u003c\/a\u003e\u003c\/li\u003e\n    \u003cli\u003e\u003ca href=\"https:\/\/aquapoolsupply.com\/pages\/search-results-page?q=HC-3340\"\u003eHC-3340 feeder parts\u003c\/a\u003e\u003c\/li\u003e\n  \u003c\/ul\u003e\n\n  \u003ch3\u003eMaintenance Tips\u003c\/h3\u003e\n  \u003cul\u003e\n    \u003cli\u003eClean and lightly lubricate the lid O-ring each time you open the feeder to reduce pinching and extend seal life.\u003c\/li\u003e\n    \u003cli\u003eAvoid over-tightening the lid—excess force can distort sealing surfaces and shorten O-ring life.\u003c\/li\u003e\n    \u003cli\u003eKeep water chemistry balanced; high pH and high calcium can accelerate scaling around the lid seal.\u003c\/li\u003e\n    \u003cli\u003eIf the feeder is in a freeze-prone area, winterize properly to prevent cracked housings and damaged seals.\u003c\/li\u003e\n  \u003c\/ul\u003e\n\u003c\/div\u003e\n","brand":"Pentair","offers":[{"title":"Default Title","offer_id":52589954990396,"sku":"R172240Z","price":17.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0736\/3280\/9276\/files\/pentair-high-capacity-chlorinator-lid-to-housing-o-ring-r172240-chlorinator-parts-8942019.jpg?v=1770941191","url":"https:\/\/aquapoolsupply.com\/products\/pentairhighcapacitychlorinatorlidtohousingoringr172240penr172240z","provider":"Aqua Pool Supply","version":"1.0","type":"link"}