The Industrial Air 1.6 HP, 20-Gallon Vertical Portable Electric Air Compressor features a cast iron, V-twin cylinder, oil-lubricated pump with belt drive technology. The pump of this 20-gallon air compressor is built with a one-piece cast iron crankcase, thermally stable cast iron cylinder body, aluminum head and machined cast iron valve plate, automotive style ball bearings, durable stainless steel reed valves, oil level sight glass, easily accessible oil fill and a 10in. cast iron balanced flywheel. Vertical 20-gallon portable tank is equipped with pneumatic tires for maximum portability. Heavy-duty dual voltage induction motor is wired for standard 120V outlet and may also be converted for 240V application. Compressor also includes a quick-set regulator, tank and working pressure gauges, quick connect air outlet and on/off switch.