The Wilkins RK34-350V housing assembly repair kit is a complete replacement vessel and internal component set for Wilkins Model 350 and 350XL double check backflow preventers. Offered as genuine Zurn/Wilkins replacement parts, this kit restores proper check operation and helps protect potable water from backflow contamination. Complete contents: pressure vessel, (2) #1 check assemblies, #1 and #2 seats with O-rings, (2) poppets, (2) springs, (2) sleeves, housing inlet and outlet O-rings, pressure vessel screws, test cocks and test cock cap plugs. Compatibility: Designed for Wilkins 350 and 350XL double check assemblies; available SKUs RK34-350V (3/4 in) and RK1-350V (1 in). Materials & construction: OEM-grade rubber and steel components with precision seals to ensure lasting performance in potable water systems. Performance specifications: Rated for 175 psi working pressure and an operating temperature range of 33°F to 180°F; meets common industry certifications (ASSE, IAPMO, CSA) where applicable. Serviceability: Complete housing assembly simplifies field servicing—no special tools required. Use manufacturer instructions and follow local plumbing codes when servicing backflow devices. Included extras: Check modules, O-rings, lubricant and fasteners supplied to complete the housing rebuild. Select the correct SKU for your pipe size (RK34-350V for 3/4"; RK1-350V for 1") to ensure a proper fit and certified operation. For installation guidance, consult the product manual or a licensed technician. Replacing the housing assembly with genuine parts helps maintain certified backflow protection and dependable system performance.
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