iPower 4 Inch 13- CFM Inline Duct Fan with Speed Humidity Temperature Controller for Grow Tent Ventilation, 4", Black
Perfect for grow tents, greenhouses, kitchens, basements, locker rooms, garage to reduce humidity and circulate fresh air. Integrates the functions of humidity monitor, indoor thermometer, digital timer, alarm and fan speed controller. 9-Speed intelligent controller from silent to powerful. Mixed flow design combined with DC eco-watt motor for a truly quiet and energy efficient performance. Specifications: Size: 4 inch; Input voltage: AC 110-220V/50HZ; Power: 25W; Speed: 2600RPM/min; Air volume: 130CFM.