In-Line Duct Fan, Airflow @ 0.000 in SP 140 cfm, Duct Diameter 6 in, Motor Output Power 34 W, Motor IP Rating Not Applicable, Nameplate Voltage 120V AC, Phase 1, Number of Speeds Variable, Overall Diameter Not Applicable, Overall Height 8 1/4 in, Overall Width 10 3/4 in, Application HVAC Booster, High-Efficiency Motor Yes, Housing Material Galvanized Steel, Motor Speed 3,450 RPM, Includes MERV 8 Filter, Power Cord, Maximum Inlet Air Temperature 140 Degrees F, Speed Control Included Yes