Air Cannon Industrial Blade Dia 18 In. 3 Phase Propeller Dia (In.) 18 Voltage 208-230/460 60 Hz Motor HP 3/4 CFM High 4300 Air Velocity (FPM) @ 20 ft 475 Operating Amps 2.6-2.6/1.3 Motor RPM 1725 Thermal Protection None Max Ambient Temp 104 Degrees F Shaft Dia 5/8 In. Bearing Type Ball Speeds 1 Number of Blades 3 Mounting Location Wall Ceiling or Floor Shaft Dia (In.) 5/8 Housing Material Steel Gray Polyester Coating Outside Dia 21-1/8 In. Width 24 In.