Yescom HO 353CFM Hydroponics Ventilation 6" inches Inline Cooling Duct Fan Exhaust Air Blower Vent UL listed, CCC, CE, RoHS Certificated for safe use Powerful and high efficiency - 2490 RPM and 353 CFM Overall Dimension:15"L x 8-1/2"W x 14-1/4"H Flange: 6" Dia Power: 110-120V, 120W