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 , Motor Speed 2,500 RPM, Includes Mounting Bracket, Maximum Inlet Air Temperature 104 Degrees F, Speed Controllable Yes