4" Co2 Exhaust Fan

Features a wired 10-speed fan controller; also compatible with all UIS controllers with intelligent programming.
PWM-controlled EC motor provides quiet and energy-efficient performance with minimal heat and noise.
Mixed flow design with stator blade and hydrodynamic wind circles enables airflow delivery in high resistance areas.
Duct Size: 4” | Dimensions: 6.9 x 11.9 x 7.4 in. | Airflow: 205 CFM | Noise: 28 dBA | Bearings: Dual Ball