Venturi Style Pneumatic Air Blower, Inlet Connection 1/2 in NPT, Base Dia. 7 5/16 in, Overall Length 32 1/8 in, Max. Inlet Pressure 140 psi, 38 cfm Air Consumed @ 50 PSIG, 53 cfm Air Consumed @ 70 PSIG, 64 cfm Air Consumed @ 90 PSIG, 1,211 cfm Total Air Flow @ 50 PSIG, 1,429 cfm Total Air Flow @ 70 PSIG, 1,580 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