In-Line Duct Fan, For Fan Type Centrifugal Duct Fan, Airflow @ 0.000 in SP 2,156 cfm, Duct Diameter 14 in, Motor Output Power 444 W, Motor IP Rating IP54, Nameplate Voltage 120V AC, Phase 1, Number of Speeds 1, Overall Diameter 17 7/8 in, Overall Height 17 1/4 in, Overall Width 17 7/8 in, Application General Purpose, High-Efficiency Motor No, Housing Material Galvanized Steel, Motor Speed 1,700 RPM, Includes Mounting Brackets, Maximum Inlet Air Temperature 140 Degrees F