This soap dispenser works with Karcher K2 K3 K4 K5 K6 K7 machines with rectangular bayonet connector. A foam snow cannon can apply a thick layer of foam and stick it to your vehicle. Compared with traditional car washing methods, this snowflake machine can produce a thick layer of foam on the car, helping to clean the vehicle faster and greatly reducing the car washing time. The house also has a luxury car wash. Adjustable nozzle for mixing and generating foam. The foam sprayer is adjustable, you can adjust the foam volume and fan according to your needs. The capacity of the soap bottle is 700ml, which can be fully distributed to 3-4 cars once filled. The car foam machine can be used to clean cars, motorcycles, floors, windows, driveways, siding, etc. Ideal for amateurs or professionals.