New Pressure Regulator and Shut off Valve By Howard Uriarte Published August 16, 2021 US Plumbing and Gas LLC 520-664-4450 See these photos of a New Pressure Regulator and Shut off Valve. As you can see, the old existing water line valves had deteriorated. We removed both valves and installed new ones for this customer in Saddlebrooke, Arizona.