Tubeaxial Fan, Drive Type Belt Drive, Includes Drive Package Yes, Includes Motor Yes, Blade Diameter 18 in, Nameplate Voltage 208-230/460V AC, Phase 3, Motor Horsepower 1 1/2 hp, Airflow @ 0.000 in SP 5,298 cfm, Maximum Noise Level @ 5 Feet 38 sones,...