Zurn Wilkins 720A Pressure Vacuum Breaker Assembly

Save on the Wilkins 1-720A 1″ Pressure Vacuum Breaker online at PlumbersStock. Pressure Vacuum Breakers prevent the reverse flow of used or dirty water from entering back into the water supply. Back siphonage can occur from time to time and this Vacuum Breaker is designed to avoid that completely. The PVB has a bronze body, silicone rubber check valve disc, plastic check valve seat, and stainless steel springs.