Axial Duct Booster Housing Material Galvanized Steel Fits Duct Dia 8 In. Voltage 120 Max Amps 1.1 Max Wattage 56 Number of Speeds 1 Housing Dia 8 In. Length 9 In. CFM @ Duct 300/250/200 CFM @ 0.000-In. SP 325Max. Inlet Temp 150 Degrees F Inlet and Outlet Dia 8 In. 60 Hz 1 PhaseMotor RPM 3000 Motor Enclosure OpenSpeed Control YesMounting Position Horizontal or Vertical Std. Lengths 25/50/75 ft. Includes Pressure Response Control and Fasteners and 6 ft Grounded Power Cord