Armor All Car Wash Foam Cannon and Extreme Shield Ceramic Car Wash kit keeps your vehicle clean for longer. The foam cannon car wash soap sprayer is compatible with 1/4" Quick-Connect to attach easily to your pressure washer. When used with the foam car wash soap, this snow foam cannon provides a thick snow foam effect for extra cleaning power. Formulated with hydrophobic Extreme Shield and ceramic technology, the car cleaner creates an invisible barrier that enhances water beading and helps to repel dirt and surface contaminants. Help keep your car looking and feeling like new with Armor All.