Direct Drive Axial Exhaust Ventilator, Propeller Dia. 24 In., CFM @ 0.000-In. SP 6042, Sones @ 0.125-In. SP @ 5 Ft. 21, Sones @ 0.250-In. SP @ 5 Ft. 20, Voltage 208-230/460, 60 Hz, 3 Phase, Max. Operating Amps 3.8-3.5/1.7, Motor HP 1, Max. BHP 1.17, RPM 1140, Max. Inlet Temp. 120 Degrees F, Base Width 34 In., Base Length 34 In., Base Height 1-3/4 In., Base Top to Shroud 6-1/4 In., Overall Height 17-1/2 In., Overall Dia. 42 In., Roof Mounting Location, Housing Material Spun Aluminum