AC Infinity CLOUDLINE A4, Quiet 4" Inline Duct Fan with Speed Controller - Ventilation Exhaust Fan for Heating Cooling Booster, Grow Tents, Hydroponics

Designed to quietly ventilate grow tents, exhaust odors, transfer heating/cooling to rooms, and cool AV closets.,Features the same build quality and innovations as the CLOUDLINE Series delivered in a value package.,Includes a wired 10-speed fan controller also compatible with all CLOUDLINE Series smart controllers.,Mixed flow design combined with an EC-powered motor for a truly quiet and energy efficient performance.,Duct Size: 4��� , Dimensions: 6.9 x 11.9 x 7.4 in. , Airflow: 165 CFM , Noise: 29 dBA , Bearings: Dual Ball