Severe Duty Upblast Ventilator Drive Type Belt Wheel Dia 21-1/4 In. CFM @ 0.000-In. SP 6187 Assembled No Motor Voltage 208-230/460 3 Phase 60 Hz Max Operating Amps 2.1-2.2/1.1 Motor HP 1-1/2 Max BHP 1.57 RPM 1100 Base Length 29-1/8 In. Base Height 6-1/4 In. Overall Dia 35-3/8 In. Base Width 29-1/8 In. Shaft Dia Sheave End 1 In. Shaft Dia Wheel End 1 In. Overall Height 40-1/4 In. Max Inlet Temp 400 Degrees Housing Material Steel Mounting Location Roof