Features: Cast iron cylinder for durability, aluminum heads for better cooling. * Long life oil bath internally lubricated pump with oil level window, ball bearing crank, and replaceable air cleaner. * Smooth running fan cooled single-phase 110 volt motors. Specifications: * 5 hp * 30 gallons * 120 psi working pressure * 4.0 cfm @ 90 psi. * 5.2 cfm @ 40 psi. * 6.3 max cfm. Includes: Dual pressure gauges * Built in 0 to 150 psi pressure regulator * Output shut off valves * Auto pressure on/off switch * 5?? power cord * Safety valve and drain petcock.