RK34-375 Backflow Preventer Repair Kit Compatible with ZurnWilkins 375/375XL/375ST 1/2" & 3/4" Models – Includes Check Assemblies, Relief Valve Parts, O-Rings & Spring –Full Internals Replacement Kit

Premium RK34-375 Backflow Preventer Repair Kit – Fits for ZurnWilkins 375 / 375XL / 375ST (1/2" & 3/4")This comprehensive RK34-375 backflow preventer repair kit is specifically designed for 375, 375XL, and 375ST models. Engineered for reliability, this kit includes every component needed to restore your valve’s functionality and ensure long-term system performance. Product Specifications:Model: RK34-375 / RK34-375RValve Compatibility: 375, 375XL, 375STPipe Sizes: Compatible with 1/2” and 3/4” valve modelsIncluded Components:Check Assembly #1 and #2 (pre-installed)Complete Relief Valve Internals6 Premium O-Rings (inlet, outlet, sleeve, relief valve seat, stem & cover)Relief Valve Spring, Lubricant Key Features & Benefits:Complete All-in-One Kit: Includes everything needed for fast and efficient repairs, no extra tools or parts required.Precise Compatibility: Built to perfectly match 375/375XL/375ST valves, ensuring a secure, leak-free fit.Restore Valve Performance: Reestablishes proper check and relief valve function, supporting consistent directional water flow and system reliability.Built to Last: Made of high-grade ABS, steel, and rubber with excellent wear and corrosion resistance.DIY-Friendly: No special tools required—perfect for professional installers or experienced homeowners.Cost-Saving Solution: Avoids full valve replacement by replacing internal components only—saving time and money.Prevents System Failure: Maintains valve integrity, reducing the risk of leaks and performance drops due to aging or damage.Trusted Replacement: Matches OEM quality and performance; replacement for RK34-375 and RK34-375R kits.

• Complete RK34-375 Repair Kit – This premium RK34-375 complete repair kit is specifically designed to restore for 375, 375XL, and 375ST backflow preventers. It includes everything needed for full valve repairs, all in one box.
• Exact OE Replacement – Matches RK34-375 & RK34-375R:Fully replaces original RK34-375 and RK34-375R parts. Designed with precise dimensions for a flawless, secure fit.
• Trusted by Professionals – Recommended for Reliable Repairs:Widely used by certified plumbers and contractors, this backflow preventer repair kit is trusted for its efficiency and quality.
• Strong Compatibility – Fits 1/2" & 3/4" Valve Sizes:This 375 RP repair kit is compatible with both 1/2" and 3/4" valves, offering versatile application for a range of pipe systems.
• Fix Leaks & Save Money – Avoid replacing the entire backflow preventer. This repair kit solves leak issues directly, saving on costly replacements and extending your valve's service life.
• DIY-Friendly Installation – No Special Tools Required:Even without plumbing experience, this kit allows fast and easy repairs with simple instructions and pre-assembled parts. Ideal for both pros and DIYers.
• Built to Last – High-Quality ABS, Rubber & Stainless Steel:Engineered using corrosion-resistant ABS, premium rubber, and steel components, this 375XL repair kit is built for high-pressure, long-term performance.
• Warranty Included for Peace of Mind: All products come with a 12-month warranty against quality-related issues and a 30-day money-back guarantee, ensuring that you can buy with confidence. Our dedicated customer service team is ready to assist you.