Air Compressor Pump, Lubrication Type Splash Lubricated, Number of Stages 2, Maximum Output Power 5 hp, Free Air Flow Rate @ Maximum Pressure 15.0 cfm @ 175 psi, Number of Cylinders 2, Maximum Operating Pressure 175 psi, Flywheel Diameter 13 3/4 in, Flywheel Included Yes, Pump Speed 1,400 RPM, Construction Aluminum, Groove Section A, Number of Grooves 1, Valve Type Reed, Valve Material Stainless Steel, Rotation CCW, Stroke Length 2 in