The MJJC Foam Cannon S V3.0 is hands-down the BEST foam cannon on the market. The quality construction and the thick frothy foam is second to none. These foam cannons easily hook up to a pressure washer with the included quick connect fitting. By covering your vehicle with a thick blanket of foam, you reduce the chance of swirl marks and scratches as you wash the vehicle. Using a MJJC Foam Cannon S V3.0 is fun for you and the whole family.