It consists of bronze body construction, silicone rubber check valve disc, plastic check valve seat, stainless steel springs, a bonnet with silicone rubber O-ring seal, a lightweight plastic disc float, tee handle or lever handle shutoffs, and test cocks for winterization draining
Prevent the reverse flow of polluted water from entering into the potable water supply due to backsiphonage
End 1 Diameter: 1/2 - 3/4 in.
Maximum Pressure: 150 psi
Handle Type: T-Handle
Watts Bonnet Repair kit contains: bonnet,bonnet o-ring, vent spring,hood and hood screws to repair Watts model 800M4 1/2" and 3/4" vacuum breaker