Wilkins RK12-420 Complete Repair Kit for 420/420XL (1/2"–3/4")

2017-08-20T07:53:47-07:00

Price: 79.53

Replace worn internal parts quickly with the genuine Wilkins RK12-420 complete repair kit. Designed for the 1/2"–3/4" Wilkins Model 420 and 420XL pressure vacuum breaker assemblies, this kit provides the internal components needed to restore proper operation and backflow protection without replacing the entire assembly.

Direct compatibility with Wilkins Model 420 and 420XL (1/2"–3/4").

Includes key internal parts for a full service: seat assembly, float assembly, bonnet and O-rings; select distributors list part numbers 421-180 (seat), 421-340 (float), 421-20 (bonnet) and 034N O-ring.

All parts are genuine Zurn/Wilkins replacement components engineered for reliable sealing and long service life.

Helps avoid the cost and downtime of full valve replacement—ideal for routine maintenance and field service.

Meets industry standards for backflow prevention; manufacturer documentation and installation instructions are available for reference.

Why technicians choose this kit: the RK12-420 groups the most commonly replaced internal components into a single kit so repairs are faster and stocking is simplified. Use basic hand tools and follow Wilkins installation instructions for a straightforward service procedure. The kit is covered by the manufacturer's limited warranty; check the included documentation for terms and conditions.