Watts 2T-M2 Duo-Cloz Manual Washing Machine Shutoff Valve is designed to control water flow from the water supply to the flexible hoses feeding a washing machine. With a flip of its lever, you can quickly turn both hot and cold water off to eliminate pressure on supply hoses and prevent potentially damaging results of a burst water hose. The ball-type design also allows the 2T-M2 to be opened to any position to control water flow and minimize harmful water hammer and banging pipes caused by fast closing washing machine solenoid valves. Brass body construction with copper straight dual adapters for 1/2 in. male NPT or 1/2 in. solder connections. Easy to install.