Venturi Style Pneumatic Air Blower, Inlet Connection 1/2 in NPT, Base Dia. 7 5/16 in, Overall Length 16 1/3 in, Max. Inlet Pressure 140 psi, 38 cfm Air Consumed @ 50 PSIG, 53 cfm Air Consumed @ 70 PSIG, 64 cfm Air Consumed @ 90 PSIG, 935 cfm Total Air Flow @ 50 PSIG, 1,274 cfm Total Air Flow @ 70 PSIG, 1,422 cfm Total Air Flow @ 90 PSIG, Base Material Cast Aluminum, Housing Material Galvanized Steel, Application Ventilation with Compressed Air or Steam of Hazardous or Explosive Vapors