This adapter converts a female T-clip to a 1/4" quick connect plug. Compatible with Karcher K series pressure washers. K series includes K2, K3, K4, K5, K6, K7, but does not include K1700, K1700 CUBE, K1800, K1900, K2000. This adapter is also compatible with Stanley SLP pressure washers. Connect the 1/4 inch plug of the adapter to the spray wand or the quick connect of the boom. Then place the T-joint of the pressure washer attachment into the T-clip of the adapter and turn it clockwise. Stainless steel quick disconnect plug and durable plastic housing. Note: The data are all measured manually, please allow 1-3cm error due to different light and display, there may be some color differences, please refer to the actual item received.