- Major Repair Kit
- For 1/2" - 1" 40-500 Series PVB
- Includes: check Spring, Float, Float disc, Guide stem, Float Spring, Cap O-ring, Screw, Check Guide, Washer, Seat disc and Seat Holder
The Apollo® Model PVB4A and PVBLF4A Pressure Vacuum Breaker A Series prevents contamination of the potable water supply due to back-siphonage. A standard integral freeze protection relief valve serves to reduce the possibility of damage due to intermittent freezing conditions. The modular check valve cartridge provides a captured spring, a replaceable seat, and a reversible silicone seat disc. This assembly features ball valve shutoffs with stainless steel handles and nuts as standard.