Wilkins RK1-420R 1" Rubber Repair Kit for Model 420/420XL

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

Price: 52.19

Genuine Wilkins RK1-420R rubber repair kit engineered to restore sealing performance on 1" Wilkins Model 420 and 420XL pressure vacuum breakers. Designed for routine maintenance, this OEM kit replaces worn elastomers that can cause leaks, noise, or reduced air‑inlet function.

Kit includes: bonnet O‑ring, seat O‑ring, check seal ring, air inlet disc.

OEM rubber components sized for 1" 420 / 420XL assemblies.

Restores reliable backsiphonage protection for potable water systems.

Field‑serviceable — no special tools required for most repairs.

Compatible with both original 420 and the lead‑free 420XL models.

Refer to the downloadable repair parts and installation instructions on this page.

Replace worn seals during routine inspection or when leakage is observed. If you're unsure about compatibility, verify the model stamp on the valve body and consult the included manufacturer documents or contact technical support for guidance.