{"product_id":"grongu-r172248-check-valve-replacement-for-pentair-rainbow-320-chlorinator-in-line-pool-spa-feeder","title":"GRONGU R172248 Check Valve Replacement for Pentair Rainbow 320 Chlorinator | In-Line Pool \u0026 Spa Feeder","description":"\u003ch2\u003eOverview\u003c\/h2\u003e\n\u003cp\u003eMeet the GRONGU R172248 check valve replacement, designed for the Pentair Rainbow inline pool and spa feeder model 320. This component supports steady water flow through your chlorinator, helping chlorine or bromine dosing proceed as water moves through the system. Precise sizing and solid construction aim to keep your setup running smoothly without guesswork.\u003c\/p\u003e\n\u003ch3\u003eCompatibility and quality\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003eCompatibility: Replacement for Pentair Rainbow 320 inline feeder (model 320).\u003c\/li\u003e\n  \u003cli\u003eExact fit: Engineered as the precise replacement for the original R172248 valve.\u003c\/li\u003e\n  \u003cli\u003eDurable materials: Built to withstand the typical pool and spa environment without easy damage.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eProduct specifics\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003eThreaded end inner diameter: 1.2 cm (0.5 in). Non-threaded end inner diameter: 1.8 cm (0.7 in). Length: 5.1 cm (2 in).\u003c\/li\u003e\n  \u003cli\u003eHigh-quality construction helps maintain clear flow paths and reduces backflow risk.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eInstallation at a glance\u003c\/h3\u003e\n\u003cp\u003eReplacing the valve is designed to be straightforward with four steps:\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eLoosen the set screw under the chlorinator.\u003c\/li\u003e\n  \u003cli\u003eUnscrew the chlorinator body and remove the old check valve.\u003c\/li\u003e\n  \u003cli\u003eInstall the new R172248 valve.\u003c\/li\u003e\n  \u003cli\u003eReassemble the chlorinator and tighten the fixing screw.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eIn-use notes\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003eBackflow prevention helps keep water from entering the chlorinator from the return line, supporting stable dosing behavior.\u003c\/li\u003e\n  \u003cli\u003eDurable materials contribute to a longer service life in common pool and spa conditions.\u003c\/li\u003e\n  \u003cli\u003ePrompt after-sales support is available if you have questions about the valve replacement.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eNotes: Benefits are framed as possibilities to help you assess fit for your system. After-sales support is available with responses within 24 hours.\u003c\/p\u003e\n\u003csection class=\"product-faq-snippet\"\u003e\u003ch3\u003eFAQ\u003c\/h3\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: What is the compatibility of the GRONGU R172248 check valve?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: It is the exact replacement for the Pentair Rainbow 320 inline pool and spa feeder.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: How do I install the R172248 valve?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Follow four steps: loosen the set screw, remove the old valve, install the new one, then reassemble.\u003c\/p\u003e\n\u003c\/div\u003e\u003c\/section\u003e","brand":"GRONGU","offers":[{"title":"Default Title","offer_id":48174152417524,"sku":"B0BHYBDHF4","price":20.8,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0826\/6652\/0820\/files\/grongu-r172248-front-view-check-valve-pentair-320.jpg?v=1778354493","url":"https:\/\/www.cerapatiogarden.com\/products\/grongu-r172248-check-valve-replacement-for-pentair-rainbow-320-chlorinator-in-line-pool-spa-feeder","provider":"Cera Garden","version":"1.0","type":"link"}