Wilkins RK1-420 1" Pressure Vacuum Breaker Repair Kit (420/420XL)

2017-08-20T07:53:41-07:00

Price: 126.03

Complete OEM repair kit for the Wilkins 1" Model 420 and 420XL pressure vacuum breaker (PVB) assemblies. The RK1-420 restores reliable backflow protection and prolongs the service life of your PVB by replacing worn internal parts with manufacturer-quality components.

Compatibility: Fits 1" Wilkins Model 420 and 420XL PVB assemblies (420 is discontinued; 420XL is the replacement).

What’s included: seat assembly, float assembly, bonnet and O-ring to replace worn internal components.

Performance: Restores correct float and seat operation to prevent backsiphonage and protect potable water.

Quality: Genuine Zurn/Wilkins repair parts engineered for long-term reliability and corrosion resistance.

Certifications & warranty: Designed to meet ASSE® 1020 and CSA® standards; backed by a limited manufacturer warranty.

Serviceability: Quick field installation—repair kits let you replace internal components without removing the full assembly.

This repair kit is an economical alternative to replacing the entire pressure vacuum breaker. Use the RK1-420 to perform routine maintenance or service after freeze, wear, or valve failure. Refer to manufacturer instructions and the provided repair guide for step-by-step replacement procedures and safety warnings before servicing.