{"product_id":"wilkins-rk8-375-8-10-model-375-relief-valve-repair-kit","title":"Wilkins RK8-375 | 8\" \u0026 10\" Model 375 Relief Valve Repair Kit","description":"\u003cp\u003e\nThe Wilkins RK8-375 is a complete relief valve repair kit designed for 8\" and 10\" Model 375\/375AST\/475\/475V Reduced Pressure Principle Backflow Preventers, restoring proper operation without full assembly replacement.\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\u003eCompatible Sizes:\u003c\/strong\u003e\n    8 Inches and 10 Inches\n  \u003c\/li\u003e\n\n  \u003cli\u003e\n    \u003cstrong\u003eCompatible Models:\u003c\/strong\u003e\n    375, 375AST, 475, 475V\n  \u003c\/li\u003e\n\n  \u003cli\u003e\n    \u003cstrong\u003eKit Components:\u003c\/strong\u003e\n    Six relief valve parts\n  \u003c\/li\u003e\n\n  \u003cli\u003e\n    \u003cstrong\u003eNotable Certifications:\u003c\/strong\u003e\n    ASSE 1013, C-UL Classified\n  \u003c\/li\u003e\n\n  \u003cli\u003e\n    \u003cstrong\u003eApplication Type:\u003c\/strong\u003e\n    Relief valve assembly 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\u003eRK212-375:\u003c\/strong\u003e\n    2 1\/2 Inches to 6 Inches models\n  \u003c\/li\u003e\n  \u003cli\u003e\n    \u003cstrong\u003eRK114-375:\u003c\/strong\u003e\n    1 1\/4 Inches to 2 Inches models\n  \u003c\/li\u003e\n  \u003cli\u003e\n    \u003cstrong\u003eRK1-375:\u003c\/strong\u003e\n    Alternative repair kit variant\n  \u003c\/li\u003e\n  \u003cli\u003e\n    \u003cstrong\u003eRK34-375:\u003c\/strong\u003e\n    Alternative repair kit variant\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 O-Rings (upper plunger, relief valve seat, and relief valve)\u003c\/li\u003e\n  \u003cli\u003eDiaphragm material\u003c\/li\u003e\n  \u003cli\u003eSeal Ring\u003c\/li\u003e\n  \u003cli\u003eStainless Steel Relief Valve Spring\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 RK8-375 is used for repairing or replacing the relief valve assembly on 8\" and 10\" Reduced Pressure Principle Backflow Preventers in commercial, industrial, and institutional water supply systems where backflow prevention is required. This kit is ideal for maintaining compliance in applications such as fire protection systems, irrigation systems, industrial process water, and municipal water distribution where large-diameter backflow preventers protect potable water supplies.\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\nASSE 1013; C-UL Classified\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 Relief Valve Solution:\u003c\/strong\u003e Includes all six essential components (upper plunger O-ring, diaphragm, seal ring, relief valve spring, relief valve seat O-ring, and relief valve O-ring) needed for comprehensive relief valve repair.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCost-Effective Repair:\u003c\/strong\u003e Targeted kit allows restoration of relief valve function without the expense of replacing the entire backflow preventer assembly.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCertified Performance:\u003c\/strong\u003e Complies with ASSE 1013 standards and is C-UL Classified, ensuring reliable backflow prevention and regulatory compliance.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eLarge Diameter Compatibility:\u003c\/strong\u003e Specifically engineered for 8\" and 10\" Model 375\/375AST\/475\/475V backflow preventers, supporting critical high-flow applications.\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 Zurn RK8-375 repair kit?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eA: The kit includes one upper plunger O-ring, one diaphragm, one seal ring, one relief valve spring, one relief valve seat O-ring, and one relief valve O-ring—everything needed to repair the relief valve assembly.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eQ: Which backflow preventer models is this repair kit compatible with?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eA: This kit is designed for 8\" and 10\" Model 375, 375AST, 475, and 475V Reduced Pressure Principle Backflow Preventers manufactured by Wilkins.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eQ: Can I use this kit to repair smaller backflow preventers?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eA: No, the RK8-375 is specifically for 8\" and 10\" models. For smaller sizes, use RK212-375 (2 1\/2\"-6\") or RK114-375 (1 1\/4\"-2\") repair kits instead.\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":42914910142527,"sku":"RK8-375","price":326.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0793\/0985\/files\/RK8-375_AF.png?v=1770568836","url":"https:\/\/bottlefillingstations.com\/products\/wilkins-rk8-375-8-10-model-375-relief-valve-repair-kit","provider":"BottleFillingStations.com","version":"1.0","type":"link"}