High Pressure Ball Valve Kit for Power Washer Hose, 3/8” Quick Disconnect, 45… by | Jul 27, 2026Quick Disconnect Fitting: 3/8’’ quick coupler plug + 3/8’’ male NPT thread; 3/8’’ quick coupler socket + 3/8’’ male NPT thread. The steel pressure washing ball valve kit is designed for pressure washer hose.