MTM HYDRO ORIGINAL FOAM CANNON WITH M407 SPRAY GUN - The MTM Original Foam Cannon with the M407 Spray Gun for home car washing or professional car cleaning. Achieve an intensive clean with a foam cannon car wash. ATTACHES TO PRESSURE WASHER - The car wash foam cannon attaches to your pressure washer with one of the included fittings. M22 twist seal plug and quick connect plug fittings included. CAR WASHING - Car wash Foam Cannon ideal for contract or home vehicle cleaning. Use the foam cannon for your pressure washer to clean your vehicle, pole barn siding, house, fence, sidewalk, and roof. ADJUSTABLE – The original MTM Hydro Foam Cannon comes with a chemical injection knob to increase or decrease foam output. Create thicker, denser foam for deeper cleaning to remove dirt and grime.