Different models are easy to solve: suitable for new models of Karcher K2, K3, K4, K5, K7 and Karcher K2, compatible machines include K2 universal version, K2 battery, K2 battery, K2 compact, compact carand the K2 family, K2 compact car, K2 total control, K2 total control of cars and homes * GB, K2 total control of homes, K2 superior total control of cars and homes, K2.850. Dual-use high pressure hose: the perfect combination of professional Karcher M22 fitting and snap-on quick fitting.They have an inside diameter: 0.34 inches (8.7 mm);outer diameter: 0.47 inches (14 mm and inner diameter: 0.25 inches (6.4 mm); outer diameter: 0.43 inches (11 mm). Flexible and durable: The high pressure extension hose has a rubber sleeve, which provides greater flexibility, is durable and wear-resistant, and is compatible with Karcher threaded pressure washer.High tension steel braided pressure washer hose with rubber sleeve. Usage: For pressure washers, simply press the trigger gun lock button to connect or release the hose immediately.Flexible hose with kink protection function.Easily and quickly clean clogged pipes, drains and gutters. Note: Karcher K series pressure washers have many types of hose connections.When ordering a pipe, please check the joint size carefully.Or contact us to confirm the pipe model before ordering.And only for cold water.