●High pressure ball valve has 3/8’’ quick connector and 3/8’’ quick connect plug. Easy to connect ball valve to gun, nozzle, pump and hose. ●The steel pressure washing ball valve kit is designed for pressure washer hose. ●The max working pressure is 4500 PSI. The max working temperature is 158 F. ●The ball valve is easy to turn on and off. It offers great leverage under high pressure. ●Quick Disconnect Fitting: 3/8’’ quick coupler plug + 3/8’’ male NPT thread; 3/8’’ quick coupler socket + 3/8’’ male NPT thread.