The D500 is economical and suitable for all airbrushes spraying properly thinned fluids. It is capable of delivering up to 40 lbs. pressure, is an oil-less diaphragm unit and comes with a grounded three wirecord. The D500 operates on 115 Volt, 1 Phase, 60 Cycle, 1/10 H.P., 3 Amps, and delivers .5 C.F.M. @ 20 P.S.I. The D500 Compressor is CSA Approved and U.L. Listed. Shipping Wt: 12 lbs.