Industrial Air Contractor 4 Gal. Oil Free Direct Drive 155 PSI Gas Powered Pontoon Air Compressor. For your next construction or remodeling project, look to this Industrial Air Contractor 4 Gal. gas-powered oil-free direct drive air compressor. This unique direct drive, oil free pump design with a 2-piece cooling system increases cooling efficiency, lowers operating temperatures, and extends the life of the pump. The oil free pump design provides low maintenance. It is powered by an easy start 212cc OHV gas engine delivering superior power transfer. The engine is equipped with automatic low oil shutdown and has a large 3.6 liter fuel tank for longer run times. The compressor features a quick set regulator, a push-to-connect quick coupler, and liquid filled tool and tank pressure gauges which provide a more accurate pressure reading. This pontoon style portable compressor includes two 2 gal. tanks providing 4 Gal. of air capacity - perfect for jobsite use. The compact size and low center of gravity enhance stability during operation.