{"product_id":"wilkins-rk4-350ck1-repair-kit-1-check-assembly-2-12-4","title":"Wilkins RK4-350CK1 | Repair Kit – #1 Check Assembly, 2-1\/2\" – 4\"","description":"\u003cp\u003e\nThe Wilkins RK4-350CK1 is a comprehensive repair kit designed to restore first check performance and sealing integrity for 2-1\/2\" – 4\" backflow prevention assemblies.\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\" – 4\"\n  \u003c\/li\u003e\n  \n  \u003cli\u003e\n    \u003cstrong\u003eCompatibility:\u003c\/strong\u003e Models 350A, 350ADA, select 350\/350DA\/450\/450DA\n  \u003c\/li\u003e\n  \n  \u003cli\u003e\n    \u003cstrong\u003eKit Contents:\u003c\/strong\u003e Complete check assembly components\n  \u003c\/li\u003e\n  \n  \u003cli\u003e\n    \u003cstrong\u003eApplication:\u003c\/strong\u003e First check repair kit\n  \u003c\/li\u003e\n  \n  \u003cli\u003e\n    \u003cstrong\u003eDesign Purpose:\u003c\/strong\u003e In-field rapid repair\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\u003eRK212-350CK1:\u003c\/strong\u003e Limited to 2-1\/2\" – 3\" sizes\n  \u003c\/li\u003e\n  \u003cli\u003e\n    \u003cstrong\u003eRK6-350CK1:\u003c\/strong\u003e For 6 Inches valves\n  \u003c\/li\u003e\n  \u003cli\u003e\n    \u003cstrong\u003eRK8-350CK1:\u003c\/strong\u003e For 8\" – 12\" large-diameter valves\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\u003eO-Ring Check\u003c\/li\u003e\n  \u003cli\u003eBolt Poppet Retainer\u003c\/li\u003e\n  \u003cli\u003eHandle #1 Poppet Assembly\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\u003eSeal Ring\u003c\/li\u003e\n  \u003cli\u003eSeat Assembly #1 Poppet\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 repair kit is designed for in-field servicing and maintenance of backflow prevention assemblies in commercial, industrial, and municipal water distribution systems where reliable check valve performance and sealing integrity are critical to maintaining system compliance and protection.\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 assemblies meeting ASSE 1013, USC FCCCHR, AWWA C510, and CSA B64.4 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 Assembly:\u003c\/strong\u003e Includes all necessary components for comprehensive #1 check repair in one convenient kit.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePerformance Restoration:\u003c\/strong\u003e Designed specifically to restore first check performance and sealing integrity to original specifications.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eRapid Field Repair:\u003c\/strong\u003e Supports quick in-field maintenance and repair, minimizing system downtime and service disruption.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWide Compatibility:\u003c\/strong\u003e Compatible with multiple 2-1\/2\", 3\", and 4\" models including 350A, 350ADA, and select 350\/350DA\/450\/450DA assemblies.\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 Wilkins models is the RK4-350CK1 repair kit compatible with?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eA: The Zurn RK4-350CK1 is compatible with 2-1\/2\", 3\", and 4\" Models 350A and 350ADA, as well as 4\" Models 350, 350DA, 450, and 450DA.\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, O-Ring Check, Bolt Poppet Retainer, Handle #1 Poppet Assembly, Washer Poppet Bolt, O-Ring Poppet Bolt, Poppet Retainer, Seal Ring, Seat Assembly #1 Poppet, and Lubricant.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eQ: What is the difference between the RK4-350CK1 and other related repair kits?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eA: The RK4-350CK1 covers 2-1\/2\" – 4\" sizes. The RK212-350CK1 is limited to 2-1\/2\" – 3\" sizes, the RK6-350CK1 is for 6\" valves, and the RK8-350CK1 is for 8\" – 12\" large-diameter valves.\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":42914909585471,"sku":"RK4-350CK1","price":491.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0793\/0985\/files\/RK4-350CK1_AF.png?v=1770568750","url":"https:\/\/bottlefillingstations.com\/products\/wilkins-rk4-350ck1-repair-kit-1-check-assembly-2-12-4","provider":"BottleFillingStations.com","version":"1.0","type":"link"}