{"product_id":"wilkins-rk8-350ck2-repair-kit-check-assembly-2-812","title":"Wilkins RK8-350CK2 | Repair Kit – Check Assembly #2, 8\"–12\"","description":"\u003cp\u003e\nThe Wilkins RK8-350CK2 is a comprehensive repair kit designed for second check assembly maintenance in 8\"–12\" backflow preventers, ensuring reliable performance in high-capacity water systems.\n\u003c\/p\u003e\n\n\u003cp\u003e \u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003e\u003cu\u003eKey Specifications:\u003c\/u\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003e\n    \u003cstrong\u003eSize:\u003c\/strong\u003e 8 Inches to 12 Inches\n  \u003c\/li\u003e\n\n  \u003cli\u003e\n    \u003cstrong\u003eCompatible Models:\u003c\/strong\u003e 350, 350A, 375, 450, 475\n  \u003c\/li\u003e\n\n  \u003cli\u003e\n    \u003cstrong\u003eAssembly Type:\u003c\/strong\u003e Second Check Assembly Components\n  \u003c\/li\u003e\n\n  \u003cli\u003e\n    \u003cstrong\u003eKit Contents:\u003c\/strong\u003e 8 Essential Replacement Components\n  \u003c\/li\u003e\n\n  \u003cli\u003e\n    \u003cstrong\u003eApplication:\u003c\/strong\u003e Large Backflow Preventer Maintenance\n  \u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003e \u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003e\u003cu\u003eOther Related Variants:\u003c\/u\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003e\n    \u003cstrong\u003eRK212-350CK2:\u003c\/strong\u003e Small sizes 2 1\/2 Inches to 3 Inches\n  \u003c\/li\u003e\n  \u003cli\u003e\n    \u003cstrong\u003eRK4-350CK2:\u003c\/strong\u003e Mid-range up to 4 Inches\n  \u003c\/li\u003e\n  \u003cli\u003e\n    \u003cstrong\u003eRK6-350CK2:\u003c\/strong\u003e 6 Inches valves only\n  \u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003e \u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003e\u003cu\u003eMaterials:\u003c\/u\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eSeat Retainer #1\u003c\/li\u003e\n  \u003cli\u003eBolt Poppet Retainer\u003c\/li\u003e\n  \u003cli\u003eWasher Poppet Bolt\u003c\/li\u003e\n  \u003cli\u003eO-Ring Poppet Bolt\u003c\/li\u003e\n  \u003cli\u003ePoppet Retainer\u003c\/li\u003e\n  \u003cli\u003eSeat Assembly #2 Poppet\u003c\/li\u003e\n  \u003cli\u003eWasher Seat Retainer\u003c\/li\u003e\n  \u003cli\u003eLubricant\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003e \u003c\/p\u003e\n\n\u003ch3\u003e\u003cstrong\u003eTypical Installation:\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp style=\"background: #f8f9fb; padding: 12px 14px; margin: 0; line-height: 1.7; color: #333;\"\u003e\nThis Zurn RK8-350CK2 repair kit is intended for second check maintenance in very large backflow preventers used in high-capacity commercial, industrial, and municipal water systems requiring reliable cross-connection control in 8\", 10\", and 12\" valve assemblies.\n\u003c\/p\u003e\n\n\u003cp\u003e \u003c\/p\u003e\n\n\u003ch3\u003e\u003cstrong\u003eStandards Compliance:\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp style=\"background: #f8f9fb; border-left: 4px solid #1d85af; padding: 12px 14px; margin: 0; line-height: 1.7; color: #333;\"\u003e\nDesigned for use with backflow preventers compliant with ASSE 1013, USC FCCCHR, AWWA C510, and applicable local plumbing codes\n\u003c\/p\u003e\n\n\u003cp\u003e \u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003e\u003cu\u003eFeatures \u0026amp; Benefits:\u003c\/u\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eComplete Repair Solution:\u003c\/strong\u003e Includes all eight essential components needed for second check assembly maintenance, eliminating the need for multiple part orders.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWide Compatibility:\u003c\/strong\u003e Works with multiple model series (350, 350A, 375, 450, 475) across three valve sizes, providing versatile maintenance options.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eExtended Equipment Life:\u003c\/strong\u003e Regular maintenance using this Zurn RK8-350CK2 kit ensures continued reliable operation and extends the service life of large backflow preventers.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eConvenient Maintenance:\u003c\/strong\u003e Pre-packaged with lubricant and all necessary seals, washers, and retainers for streamlined service procedures.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003e \u003c\/p\u003e\n\n\u003ch3\u003e\u003cstrong\u003eFAQ\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp\u003e \u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eQ: Which valve models is this repair kit compatible with?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eA: This kit is compatible with 8\", 10\", and 12\" Models 350, 350A, 375, 450, and 475 backflow preventers for second check assembly maintenance.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eQ: What components are included in this repair kit?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eA: The kit includes Seat Retainer #1, Bolt Poppet Retainer, Washer Poppet Bolt, O-Ring Poppet Bolt, Poppet Retainer, Seat Assembly #2 Poppet, Washer Seat Retainer, and Lubricant.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eQ: Can I use this kit for smaller valve sizes?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eA: No, this kit is specifically designed for 8\"–12\" valves. For smaller sizes, use RK212-350CK2 (2 1\/2\"–3\"), RK4-350CK2 (up to 4\"), or RK6-350CK2 (6\" only).\u003c\/p\u003e\n\n\u003cp\u003e \u003c\/p\u003e\n\n\u003cdiv id=\"W3TucRPBpqQA9ARvwg6ni-content\"\u003e\n  \u003cp\u003e\n    \u003cspan\u003e\n      \u003cstrong\u003eNOTICE:\u003c\/strong\u003e\n      Do not use with water that is unsafe or of unknown quality without adequate\n      disinfection either before or after the system.\n    \u003c\/span\u003e\n  \u003c\/p\u003e\n\u003c\/div\u003e\n\n\u003cp\u003e\n  \u003ci\u003e\n    \"Hydrate Everyone, Everywhere!\" BottleFillingStations.com |\n    \u003ca rel=\"noopener\" href=\"https:\/\/bottlefillingstations.com\/pages\/contact-us\" target=\"_blank\"\u003e\n      Contact us\n    \u003c\/a\u003e\n  \u003c\/i\u003e\n\u003c\/p\u003e","brand":"Zurn Wilkins","offers":[{"title":"Default Title","offer_id":42914910109759,"sku":"RK8-350CK2","price":1454.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0793\/0985\/files\/RK8-350CK2_AF.png?v=1770568816","url":"https:\/\/bottlefillingstations.com\/products\/wilkins-rk8-350ck2-repair-kit-check-assembly-2-812","provider":"BottleFillingStations.com","version":"1.0","type":"link"}