Made of quality brass, designed to last and leak-free. Ideal for enthusiast or professional use The professional foam gun works perfectly on Karcher K2/K3/K4/K5/K6/K7 pressure washer The spray nozzle is adjustable so you can adjust the pressure size of foam/water that comes out as you want It makes soft fluffy snow foam, fun and simply, works with any pressure washers, small and big are all working perfectly, saves water, energy and time Allows cleaning agents or disinfectants to be applied evenly over a large surface, Easy to use, Perfect for Driveways, Roofs, Siding, Cars, Trucks, SUVs.