The SAE 600 washer is on wheels and the low profile makes it easy to move between vehicles. This washer is powered by an air pump with a capacity of 6 litres per minute. The air pump re-circulates solvent through the "flow through" brush and used solvent falls into a portable tub incorporated in the undercar washer. An air flow blow off gun removes any excess solvent from the vehicle leaving it clean and spotless.