{"product_id":"zurn-wilkins-rk4-350pk-repair-pro-kit-for-350a-350-450-backflow-preventers","title":"Wilkins RK4-350PK | Repair Pro-Kit for 350A, 350, 450 Backflow Preventers","description":"\u003cp\u003e\nThe Wilkins RK4-350PK is a standard repair pro-kit designed to restore check valve sealing and internal rubber components in Model 350A, 350, and 450 backflow preventers, ensuring reliable performance and compliance.\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\u003eCompatibility:\u003c\/strong\u003e 2 1\/2 to 4 Inches\n  \u003c\/li\u003e\n\n  \u003cli\u003e\n    \u003cstrong\u003eNotable Certifications:\u003c\/strong\u003e Lead-free compliant\n  \u003c\/li\u003e\n\n  \u003cli\u003e\n    \u003cstrong\u003eKit Components:\u003c\/strong\u003e Complete seal and O-ring set\n  \u003c\/li\u003e\n\n  \u003cli\u003e\n    \u003cstrong\u003eApplication:\u003c\/strong\u003e Backflow preventer repair\n  \u003c\/li\u003e\n\n  \u003cli\u003e\n    \u003cstrong\u003ePackaging:\u003c\/strong\u003e Poly bag\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\u003eContact us for other Wilkins repair kits\u003c\/strong\u003e\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\u003eRubber seal rings\u003c\/li\u003e\n  \u003cli\u003eElastomer O-rings\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\nThe Zurn RK4-350PK is used for repair and maintenance of backflow preventer check assemblies in commercial, industrial, and municipal water supply systems where Model 350A (2 1\/2 to 4 Inches), Model 350 (4 Inches), and Model 450 (4 Inches) backflow preventers are installed to protect potable water systems from contamination.\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\nLead-free compliant\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 Restoration Kit:\u003c\/strong\u003e The Zurn RK4-350PK includes all necessary check seal rings, check O-rings, poppet bolt O-rings, and lubricant to fully restore check valve sealing and internal rubber components.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWide Compatibility:\u003c\/strong\u003e Fits 2 1\/2 to 4 Inches Model 350A and 4 Inches Model 350 and 450 backflow preventers, providing versatile repair solutions for multiple valve sizes.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eLead-Free Compliance:\u003c\/strong\u003e Constructed with lead-free materials including rubber seal rings and elastomer O-rings, meeting current safety and regulatory standards.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eConvenient Packaging:\u003c\/strong\u003e Compact poly bag packaging simplifies storage, shipping, and ensures all components are organized for efficient maintenance work.\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 backflow preventer models are compatible with the Wilkins RK4-350PK repair kit?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eA: The RK4-350PK is designed specifically for Model 350A (2 1\/2 to 4 Inches), Model 350 (4 Inches), and Model 450 (4 Inches) backflow preventers.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eQ: What components are included in this repair pro-kit?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eA: The kit includes No. 1 and No. 2 check seal rings, check O-rings, poppet bolt O-rings, and lubricant necessary for complete internal component restoration.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eQ: How often should backflow preventer check valves be serviced with this repair kit?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eA: Backflow preventers should be tested and serviced annually or according to local code requirements. Use this kit when check valve sealing or internal rubber components show wear or failure during testing.\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":42934992044095,"sku":"RK4-350PK","price":152.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0793\/0985\/files\/RK4-350PK_E_4a78aad7-babe-407f-ac27-1dd851fcb26a.jpg?v=1771502160","url":"https:\/\/bottlefillingstations.com\/products\/zurn-wilkins-rk4-350pk-repair-pro-kit-for-350a-350-450-backflow-preventers","provider":"BottleFillingStations.com","version":"1.0","type":"link"}