Compressor/Vacuum Pump, Output Power 0.75 hp, Voltage Motorless, Inlet Size 1/2 in, Inlet Type NPT, Outlet Size 1/2 in, Outlet Type NPT, Free Air Flow Rate 14.5 cfm, Maximum Vacuum 20 in Hg, Maximum Continuous Pressure 15 psi, Maximum Speed 1,725 RPM