{"product_id":"pentairwaterpoolandspainc_r172367","title":"Pentair Winterizing or Isolation Plug for Rainbow 300 302 300-19 300-29 Automatic Feeders | R172367","description":"\u003cp\u003eThe Pentair Winterizing or Isolation Plug (R172367) is the OEM replacement plug for the Pentair Rainbow 300, 302, 300-19, and 300-29 automatic pool and spa chemical feeders.\u003c\/p\u003e\n\n\u003cp\u003eThis plug attaches to the control valve of the automatic feeder, isolating the unit from the plumbing circuit during winterization or whenever the feeder needs to be taken offline for service. Capping the control valve port prevents water from entering or exiting the feeder when it is not in use, protecting internal components during off-season storage or maintenance periods.\u003c\/p\u003e\n\n\u003ch3\u003eSpecifications\u003c\/h3\u003e\n\u003ctable style=\"width: 100%; border-collapse: collapse; margin: 20px 0; border: 1px solid #ccc;\"\u003e\n  \u003ctr style=\"background-color: #f8f9fa;\"\u003e\n    \u003ctd style=\"border: 1px solid #ccc; padding: 10px;\"\u003e\u003cstrong\u003ePentair Part Number\u003c\/strong\u003e\u003c\/td\u003e\n    \u003ctd style=\"border: 1px solid #ccc; padding: 10px;\"\u003eR172367\u003c\/td\u003e\n  \u003c\/tr\u003e\n  \u003ctr\u003e\n    \u003ctd style=\"border: 1px solid #ccc; padding: 10px;\"\u003e\u003cstrong\u003ePart Name\u003c\/strong\u003e\u003c\/td\u003e\n    \u003ctd style=\"border: 1px solid #ccc; padding: 10px;\"\u003eWinterizing or Isolation Plug\u003c\/td\u003e\n  \u003c\/tr\u003e\n  \u003ctr style=\"background-color: #f8f9fa;\"\u003e\n    \u003ctd style=\"border: 1px solid #ccc; padding: 10px;\"\u003e\u003cstrong\u003eQuantity Included\u003c\/strong\u003e\u003c\/td\u003e\n    \u003ctd style=\"border: 1px solid #ccc; padding: 10px;\"\u003eEach\u003c\/td\u003e\n  \u003c\/tr\u003e\n\u003c\/table\u003e\n\n\u003ch3\u003ePro Tip\u003c\/h3\u003e\n\u003cp\u003eBefore ordering, confirm the part number stamped or molded on your existing plug matches R172367. If your feeder is being winterized, install this plug after fully draining and rinsing the feeder body — capping a wet feeder with residual chemical inside can cause corrosion over the off-season.\u003c\/p\u003e\n\n\u003c!-- wft:processed:manual:2026-04-06 --\u003e","brand":"Pentair","offers":[{"title":"Default Title","offer_id":53971974881555,"sku":"R172367","price":4.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0920\/0687\/5411\/files\/pentair-winterizing-or-isolation-plug-for-rainbow-300-302-300-19-300-29-automatic-feeders-r172367.webp?v=1787784499","url":"https:\/\/poolaroo.com\/products\/pentairwaterpoolandspainc_r172367","provider":"Poolaroo","version":"1.0","type":"link"}