【High Quality】The pressure washer fittings are made of aluminum and hard plastic housing for durability, wear resistance and corrosion resistance. 【Wide Range of Applications】The pressure washer hose adapter with M22 14mm female thread can be used for home and garden pressure washers or pressure washer guns. 【Easy to Connect】One end of the adapter is a Quick Connect release system that only fits Karcher quick release hoses and is easy to connect and disconnect. 【Extension Function】The other end of the adapter can be connected to a pressure washer hose (M22 14mm fitting) to extend the tube.