Dewalt, 1.1 hp, continuous, 4 gallon, electric, hand carry, compressor, twin stack tank design, 3.2 cfm delivered @ 100 psi pump enables quick recovery, cast iron cylinder enhances pump life, lightweight design for easy use & handling in a variety of orientations, high-flow regulator for increased performance, dual soft start valves assist in cold weather start-up, oil lubricated pump improves durability.