Lighthouse Hydro 400 CFM Duct Booster Inline Cool Air Blower Vent, 8-Inch Flange Size: 8", Dimensions: 8"(L) x 8"(W) x 7.25"(H), Weight: 3 lbs., Compatible with 8" Carbon Filter Voltage: 110V/60Hz, Power: 47.7 Watts, Current: 120 Volts, 400 CFM (Cubic Feet per Minute) Vibration free operation, All metal construction, Heavy duty metal impeller Low power draw, Grounded 6' power cord, Balanced motor with permanently lubricated bearings Extremely effective for short run Duct work