1/4" Snow Foam Washer Gun Car Wash Soap Lance Cannon Spray Jet Bottle W/Nozzle. Gun to Lance Connection: M22. Gun to Hose Connection: M22. Gun to Hose Connection: M22 - 14. Safe Design: The handle of the short wand high pressure gun adopts a trigger lock design to prevent accidental spraying, make you safer when cleaning the car or the roof.