{"product_id":"wilkins-rk212-350ck2-repair-kit-second-check-assembly-2-12-3","title":"Wilkins RK212-350CK2 | Repair Kit Second Check Assembly, 2-1\/2\" – 3\"","description":"\u003cp\u003e\nThe Wilkins RK212-350CK2 is a comprehensive repair kit designed to service the second check assembly in double check and RP backflow preventers for 2-1\/2\" and 3\" Models 375, 350, 475, and 450.\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 2-1\/2\" and 3\"\n  \u003c\/li\u003e\n\n  \u003cli\u003e\n    \u003cstrong\u003eCompatible Models:\u003c\/strong\u003e 375, 350, 475, 450\n  \u003c\/li\u003e\n\n  \u003cli\u003e\n    \u003cstrong\u003eApplication:\u003c\/strong\u003e Second check assembly service\n  \u003c\/li\u003e\n\n  \u003cli\u003e\n    \u003cstrong\u003eAssembly Type:\u003c\/strong\u003e Complete repair kit\n  \u003c\/li\u003e\n\n  \u003cli\u003e\n    \u003cstrong\u003eComponents Included:\u003c\/strong\u003e Nine critical sealing components\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\u003eRK4-350CK2:\u003c\/strong\u003e 4\" size support with additional model compatibility\n  \u003c\/li\u003e\n  \u003cli\u003e\n    \u003cstrong\u003eRK6-350CK2:\u003c\/strong\u003e 6\" valves only\n  \u003c\/li\u003e\n  \u003cli\u003e\n    \u003cstrong\u003eRK8-350CK2:\u003c\/strong\u003e Large 8\"–12\" valve sizes\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\u003eO-Ring seals for durable sealing performance\u003c\/li\u003e\n  \u003cli\u003eSeat retainer components for structural integrity\u003c\/li\u003e\n  \u003cli\u003ePoppet assembly materials for reliable check valve operation\u003c\/li\u003e\n  \u003cli\u003eSeat ring constructed for long-lasting performance\u003c\/li\u003e\n  \u003cli\u003ePremium lubricant for smooth operation\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\nUsed to service and restore downstream sealing performance in the second check assembly of double check valve assemblies and reduced pressure zone backflow prevention assemblies in commercial, industrial, and municipal water systems requiring routine maintenance and compliance testing.\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 ASSE 1015 listed devices; USC FCCCHR approved assemblies; meets applicable backflow prevention standards\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 nine essential components needed to fully rebuild the second check assembly, eliminating the need for multiple orders.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eRestores Downstream Sealing:\u003c\/strong\u003e Designed specifically to restore optimal sealing performance in the critical second check, ensuring continued backflow protection and compliance.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWide Model Compatibility:\u003c\/strong\u003e Compatible with multiple Wilkins RK212-350CK2 and Zurn RK212-350CK2 series models (375, 350, 475, 450) in both 2-1\/2\" and 3\" sizes.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSimplified Maintenance:\u003c\/strong\u003e Pre-packaged with lubricant and all necessary sealing components for efficient field servicing and reduced downtime.\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: What components are included in the RK212-350CK2 repair kit?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eA: The kit includes Seat Retainer #1, O-Ring Seat, Nut Poppet Retainer, Washer #2 Check, O-Ring Stem, Poppet Retainer, Seat Ring, Seat Assembly #2 Poppet, and Lubricant.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eQ: Which valve models and sizes is this repair kit compatible with?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eA: This repair kit is designed for 2-1\/2\" and 3\" Models 375, 350, 475, and 450 double check and RP backflow preventers.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eQ: How does this kit differ from the RK4-350CK2 or RK6-350CK2 variants?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eA: The RK212-350CK2 is for 2-1\/2\" and 3\" sizes, while RK4-350CK2 adds 4\" size support with additional model compatibility, RK6-350CK2 is specifically for 6\" valves, and RK8-350CK2 covers large 8\"–12\" valve sizes.\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":42914909061183,"sku":"RK212-350CK2","price":193.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0793\/0985\/files\/RK212-350CK2_AF.png?v=1770568709","url":"https:\/\/bottlefillingstations.com\/products\/wilkins-rk212-350ck2-repair-kit-second-check-assembly-2-12-3","provider":"BottleFillingStations.com","version":"1.0","type":"link"}