{"product_id":"pentair-1-2-inch-control-valve-replacement-for-rainbow-feeders-r172086-oem-fit-leak-resistant","title":"Pentair 1\/2-Inch Control Valve Replacement for Rainbow Feeders — R172086, OEM Fit \u0026 Leak-Resistant","description":"\u003cp\u003e\u003cstrong\u003ePentair R172086 is a 1\/2-inch control valve designed to replace the valve in Pentair Rainbow automatic chlorine and bromine pool and spa feeders.\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cp\u003eThis replacement control valve restores reliable flow control for salt-free chemical feeders used in residential pools and spas. It directly fits Rainbow feeder models 320, 322 and 300-29X, offering a factory-compatible part when the original valve shows wear, leaks, or reduced performance. The valve is manufactured in Taiwan and sized at 1\/2 inch to match the feeder plumbing and fittings.\u003c\/p\u003e\n\n\u003ch3\u003eHow do I know this valve will fit my Rainbow feeder?\u003c\/h3\u003e\n\u003cp\u003eCheck your feeder model number—this R172086 valve is made to match Rainbow models 320, 322 and 300-29X. Confirm the valve size is 1\/2 inch and visually compare mounting points to your existing valve to ensure alignment.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eCompatible models: Rainbow 320, 322, 300-29X\u003c\/li\u003e\n  \u003cli\u003eValve inlet\/outlet diameter: 1\/2 inch\u003c\/li\u003e\n  \u003cli\u003eDirect OEM replacement—matches original geometry and mounting\u003c\/li\u003e\n  \u003cli\u003eManufactured in Taiwan for consistent quality\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhat improvements can I expect after replacing the control valve?\u003c\/h3\u003e\n\u003cp\u003eReplacing a worn or leaking valve restores precise flow regulation and helps prevent chemical overfeed or underfeed. You’ll typically regain smooth operation, tighter seals, and reduced chance of drips at connections.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eRestores accurate feed rate control\u003c\/li\u003e\n  \u003cli\u003eReduces leaks and drip points\u003c\/li\u003e\n  \u003cli\u003eImproves longevity of feeder operation\u003c\/li\u003e\n  \u003cli\u003eEasy swap-in for minimal downtime\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eHow difficult is installation, and what tools do I need?\u003c\/h3\u003e\n\u003cp\u003eInstallation is straightforward for a person comfortable with basic pool equipment maintenance. Turn off the feeder, relieve system pressure, remove the old valve, and install the R172086 control valve using common hand tools and thread sealant where required.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eTools: adjustable wrench, pliers, plumber's tape or thread sealant\u003c\/li\u003e\n  \u003cli\u003eTime: typically under 30–45 minutes for a standard replacement\u003c\/li\u003e\n  \u003cli\u003eSafety: power and feed lines should be turned off before starting\u003c\/li\u003e\n  \u003cli\u003eSupport: consult your feeder manual for model-specific steps\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhat should I inspect after fitting the replacement valve?\u003c\/h3\u003e\n\u003cp\u003eAfter installation, run the feeder through a short cycle while watching for leaks and confirming steady flow. Verify connections remain tight and that the feeder dispenses chemicals at the expected rate without unusual noise or resistance.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eCheck all threaded connections for tightness and leaks\u003c\/li\u003e\n  \u003cli\u003eObserve operational flow for at least one full cycle\u003c\/li\u003e\n  \u003cli\u003eConfirm chemical dispensing matches prior settings\u003c\/li\u003e\n  \u003cli\u003eRecheck after 24 hours of normal operation\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eWho this is for: The Pentair R172086 control valve is intended for pool and spa owners, service technicians, and maintenance professionals who operate Rainbow automatic chlorine\/bromine feeders and need an OEM-compatible valve replacement. It’s ideal for anyone facing leaks, inconsistent chemical feed, or a failed valve on Rainbow models 320, 322 or 300-29X who prefers a direct-fit, manufacturer-grade part to restore reliable feeder performance.\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: Is this valve compatible with Rainbow 322 feeders?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Yes. The R172086 is an OEM replacement specifically compatible with Rainbow 322, 320, and 300-29X models.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: Does installation require a professional plumber?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Not usually. Basic hand tools and following the feeder manual are sufficient for most DIY installers.\u003c\/p\u003e\n\u003c\/div\u003e\u003c\/section\u003e","brand":"Pentair","offers":[{"title":"Default Title","offer_id":56818932154708,"sku":"B0039LN1WQ","price":75.77,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1063\/2652\/4244\/files\/pentair-control-valve-front-view.jpg?v=1786961421","url":"https:\/\/gardenluxe.co.uk\/products\/pentair-1-2-inch-control-valve-replacement-for-rainbow-feeders-r172086-oem-fit-leak-resistant","provider":"Gardenluxe Uk","version":"1.0","type":"link"}