AC Infinity Cloudline A Series Quiet Inline Fan with Speed ControllerDelivers the same quality build and innovations as the CLOUDLINE Series, set in a budget friendly value package. 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