This is a Craftsman Professional air compressor, model 919.167780, featuring a 25-gallon tank and a maximum pressure of 175 PSI. It is equipped with a 2-stage, oil-free pump and a 3.5 HP motor. The unit operates on 120V/60Hz/1PH/15A and has an air delivery of 5.1 SCFM at 90 PSI and 6.4 CFM at 40 PSI