Watts 3/4 in. Bronze Anti-Siphon Pressure Vacuum Breaker, Freeze Sensor
This 3/4 in. It consists of bronze body construction, silicone rubber check valve disc, plastic check valve seat, stainless steel springs, tee handle shutoff, a bonnet with silicone rubber O-ring seal, a light-weight plastic disc float and test cocks for Winterization draining.