The Zurn-Wilkins 720A Pressure Vacuum Breaker Assembly is a reliable valve suitable for use with water. Made of durable brass, this valve features an inlet and outlet diameter of 1 inch, with a maximum pressure of 150 psi. Designed as a Pressure Vacuum Breaker (PVB), it effectively prevents vacuum conditions from occurring in the system. This assembly is a essential component for maintaining the proper functioning of hydraulic, pneumatic, and plumbing systems in various industrial and commercial settings.