This 1 1/4-2 IN complete rubber parts repair kit for a pressure vacuum breaker, series 800M4, prevents the reverse flow of polluted water from entering into the potable water supply due to backsiphonage. This kit consists of a vent seal, check disc and bonnet O-ring.
- Factory Replacement Kit
- No special tools required for changing parts
- All parts are made of high quality materials
- Easy to use for repair
