These economical, oil-less, one-phase 60Hz piston compressors have a 1/5 HP motor, and are suitable for all airbrushes spraying properly thinned fluids. Both deliver 0.4 CFM at 20 PSI. CSA approved and UL listed. - Paasche Air Compressor - 1/5 Horsepower, D500SR with Regulator and Moisture TrapPaasche Compressor, 1/8HP W/REG/TRAP - The D500SR is capable of delivering 20–40 PSI operating pressure depending on the airbrush being used, and delivers 0.4 CFM at 20 PSI. It includes an R-75 Regulator/Filter with gauge, which regulates up to 40 PSI, depending on usage (intermittent or constant) and the airbrush size. The compressor operates on 110–120V and features a grounded three-wire cord. CSA approved and UL listed. Weighs 9 lb (4.1 kg).