Foam Gun/Soap Canon

A foam gun is a versatile, handheld tool designed for two primary purposes: applying thick, clingy detergent foam to vehicles for cleaning (using a garden hose) or precisely dispensing pressurized polyurethane (PU) expanding foam for sealing and insulation. These devices feature a trigger-operated mechanism, a canister or nozzle connection, and, in many models, an adjustment knob for regulating flow and concentration