Exhaust/Supply Fan Belt Drive Reversible Propeller Dia 30 In. Exhaust/Supply CFM @ 0.000-In. SP 10 221 @ 0.125-In. SP 9081 @ 0.250-In. SP 7219 Max Inlet Temp 104 Deg. F Voltage 115/208-230 60 Hz 1 Phase Operating Amps 11.0/5.5-5.5 Fan RPM 938 Motor HP 3/4 Height 34 In. Width 34 In. Max Depth 21 1/2 In. Mounting Position Horizontal or Vertical Propeller Material Cast Aluminum Number of Blades 6 Includes Reversing Switch