LEDwholesalers GYO2402 6-Inch 240 CFM Air Duct Inline Hydroponic Booster Fan Hydroponic booster fan All metal construction (including the blades); discreet packaging CFM 240 air duct inline, 6-inch male on one end, female on other end Fan exhaust booster blower air cool; 4-Feet power cord Capacity 120 volt, 60 hertz, 37 watts