iPower GLFANXINLINEEXPC6 6 Inch 294 CFM Inline Duct Fan with Variable Speed Controller Ventilation, Quiet HVAC Exhaust Blower, 6 Fan & Speed, Black

The iPower Inline Fan is composed of the chassis, impeller, external rotor motor. ? Chassis: Is made of high-quality, cold-rolled steel. The surface is treated with a kind of plastic sealant to provide a strong resistance to corrosion. CAD optimizations on the flow channel design to allow the impeller performance at its greatest efficiency. Inlet and outlet diameter flanges are easy to install, repair and clean. ? Impeller: The curved-end blade impeller works with the fan casing in harmony; the fan can produce maximum air flow and efficiency while minimizing noise. ? External Rotor Motor: A single-phase asynchronous external rotor motor is located on the chassis. The impeller is attached directly to the rotor motor by die-casting. The impeller is driven directly by rotor to minimize noise while providing high airflow and extending service life.