WW0887973, 3/4 - 1 IN 008 SVB Bonnet Assembly Kit

This 3/4-1 IN backflow preventer bonnet repair kit, series 008, is used to prevent the reverse flow of polluted water from entering into the potable water supply due to backsiphonage on indoor point-of-use applications. It consists of a bonnet, bonnet O-ring and vent spring. It is ideal for indoor use on machines or equipment in general plumbing applications.