The Car Chem Foam Cannon makes cleaning your car easy, fast, and fun for the entire family! Easily hooks to any standard garden hose but also includes a quick disconnect adapter. Combines the soap with air and running water to spray foam. Turn the dial to adjust the amount of soap injected. Foam helps carry dirt particles and grime gently away from paint surfaces leaving a scratch free car wash. Simply add your favorite Car Chem Car Wash Soap to create the perfect car wash foam. We recommend trying Car Chem Power Foam.