Venturi Pneumatic Air Blower, Includes Base, Plastic Handle, Static Ground Connection, Air Inlet Connection Size 1/2 in, Maximum Inlet Pressure 140 psi, Air Inlet Type NPT, Air Inlet Gender Not Applicable, Total Air Flow @ 60 PSIG 1,135 cfm, Total Air Flow @ 40 PSIG 960 cfm, Total Air Flow @ 90 PSIG Not Applicable, Air Consumed @ 40 PSIG 20 scfm, Air Consumed @ 60 PSIG 30 scfm, Air Consumed @ 80 PSIG 40 scfm, Application Ventilation, Base Diameter 7 1/4 in, Base Material Cast Aluminum