Specification The universal pressure washer coupling connects the pressure washer spray gun to the hose. Fits many brands of pressure washers and hoses with M2 14mm couplings. Material: aluminum alloy Note: The inner diameter of the 14mm M2 threaded connection is 14mm, pitch 1.5mm. If the connection on your pressure washer is 15mm, a leak may occur. 1. One end of the quick connector is inserted into the Kärcher hose and the other end is connected to a high-pressure cleaning gun or high-pressure cleaning machine. 2. The M2 coupling is connected to one or two quick connectors of different types of pipes. 3. It is suitable for general connection of spray gun, hose and pump, easy to connect and disconnect. Note: All data is measured manually. Please allow 1-3 cm error. Due to differences in light and display, there will be a certain color difference. The actual product received shall prevail.