In-Line Duct Fan For Fan Type In-Line Duct Fan Airflow @ 0.000 in SP 101 cfm Duct Diameter 4 in Motor Output Power 26 W Motor IP Rating IP44 Nameplate Voltage 120V AC Phase 1 Number of Speeds 1 Overall Diameter 5 1/2 in Overall Height 3 3/4 in Overall Width 3 3/4 in Application General Purpose High-Efficiency Motor No Housing Material Thermoplastic Motor Speed 2 500 RPM Includes Mounting Bracket Maximum Inlet Air Temperature 104 Degrees F Speed Controllable Yes