Flange Size: 4", Dimensions: 4"(L) x 4"(W) x 7"(H), Weight: 1.5 lbs., Compatible with 4" Carbon Filter * Voltage: 110V/60Hz, Power: 43.8 Watts, Current: 120 Volts, 100 CFM (Cubic Feet per Minute) * Vibration free operation, All metal construction, Heavy duty metal impeller * Low power draw, Grounded 42" power cord, Balanced motor with permanently lubricated bearings * Extremely effective for short run Duct work