In-Line Duct Fan For Fan Type Centrifugal Duct Fan Airflow @ 0.000 in SP 4 274 cfm Duct Diameter 16 in Motor Output Power 1 357 W Motor IP Rating IP54 Nameplate Voltage 120V AC Phase 1 Number of Speeds 1 Overall Diameter 22 1/8 in Overall Height 23 3/4 in Overall Width 22 1/8 in Application General Purpose High-Efficiency Motor No Housing Material Galvanized Steel Motor Speed 1 600 RPM Includes Mounting Brackets Maximum Inlet Air Temperature 140 Degrees F