This 1" through the wall water supply shutoff is used to provide outside access to a building water supply for start-up, winterizing and servicing of irrigation sprinkler systems. It features a durable bronze body and shaft, one piece valve plunger, tamper resistant key operated hydrant, manual drain port, exterior chrome finish and union connection for ease of installation of a backflow preventer. It is 10" long. Maximum working pressure is 175 PSI (12.06 bar).