AC Infinity CLOUDLINE S4, Quiet Inline Duct Fan System with Speed Controller, 4-Inch

Description Quiet Ventilation Design: Created to ventilate grow tents smoothly, transfer heating/cooling to rooms, circulate fresh air and cool down AV closets. The fan operates at a quiet noise level with energy-efficient performance minimizing heat and noise. Wired 10-Speed Fan Controller: Compatible with all UIS controllers boasting intelligent programming. The speed controller allows you to set the duct fan's speed to the optimal noise and airflow levels in different environments. This feature is supported by the inline fan's cutting-edge EC motor controlled using PWM (Pulse Width Modulation) for smooth running at very low RPM speeds without generating motor noises. Mixed Flow Design: Comprises of a stator blade and hydrodynamic wind circles, facilitating airflow delivery in areas with high resistance. The duct size is 4” and it offers an airflow of 205 CFM. The fan is designed with an EC motor that is PWM-controlled, providing energy-efficient performance. Easy Maintenan