720A Pressure Vacuum Breaker Repair Kit – KSJED

The KSJED 720A Pressure Vacuum Breaker (PVB) Repair Kit is engineered to restore functionality to Wilkins 1/2”, 3/4”, and 1” PVB units. Designed for the Wilkins RK1‑720AB series, this kit repairs most frozen or oxidized 720A PVBs, eliminating water leakage caused by corrosion of the valve components. The kit includes a bonnet repair set and a complete replacement kit, allowing you to replace the damaged bonnet, O‑rings, springs, poppet, and spider assembly with high‑quality stainless‑steel, rubber, and plastic parts.

Installation is straightforward: shut off inlet and outlet valves, remove the canopy, bleed pressure via the test knob, disassemble the bonnet, replace worn components, and reassemble. The product is tested for reliable operation in potable water lines, protecting against back‑siphonage of contaminated water. With an operating temperature range of 33 °F to 110 °F, the kit is suitable for most residential and commercial plumbing applications.