Easy to connect: One end of the adapter is a quick release system, suitable for Nilfisk/Bosch quick connect hoses, easy to connect and disconnect. Extension function: The other end of the adapter can be connected to the high pressure washer hose (M22 14mm) to extend your hose. Wide range of applications: The windshield washer hose adapter can be used for home and garden high pressure cleaners or high pressure washer guns. Note: The data is all measured manually, please allow 1-3 cm error due to differences. Due to light and display, there may be some color differences, please refer to the actual item received.