Bonnet Assembly Kit Consist of: Bonnet Bonnet 'O'-ring Vent spring Hood & hood screwsIt consists of bronze body construction, a silicone rubber check valve disc, and a plastic check valve seatThis pressure vacuum breaker prevents the reverse flow of polluted water from entering into the potable water supply due to back siphonage
Watts 1" 800 Repair Part RK 800M4 B. Kit Consists Of: Bonnet, Bonnet O-Ring, Vent Spring, Hood & Hood Screws.
Brand: Watts, Model: 0887701