This soap dispenser is compatible with Karcher K2 K3 K4 K5 K6 K7 machines with a rectangular bayonet connection. The foam cannon can apply a thick layer of foam and attach it to the vehicle. Compared with traditional car washing methods, this snowflake machine can create a thick layer of foam on the car, cleaning the vehicle faster and significantly reducing washing time. The house also has a luxurious car wash facility. Adjustable nozzle for mixing and generating foam. The foam sprayer is adjustable, allowing you to adjust the foam amount and compartments as needed. The soap bottle has a capacity of 700 ml, which can be fully distributed to 3-4 cars after filling. The car foam machine can be used to clean cars, motorcycles, floors, windows, driveways, trim, etc. Ideal for amateurs or professionals.