Washing Machine Valve Tee 15mm x 3/4" is used to connect a 15mm copper pipe to a standard 3/4” thread washing machine hose. The compression fittings allow for an easy connection which prevents any leaks. It is used to isolate the flow of water to an appliance without needing to turn off the mains water supply. Comes with a blue and a red lever for either the hot or the cold supply.