When air capacity is an issue and jobs are long, the PCE6150 answers the bell with its 15 gal electro-statically painted tank married to a powerful 3.5 hp high capacity electric motor the creates 115 psi to ensure optimum torque while producing 5.2 cfm at 450 psi and 4.2 cfm at 90 to ensure duration. Add dual pressure gauges and quick couplers that allow the user to incorporate two tools at one time and it is easy to see why this unit can be used day in and day out to get the job done.