4 inch circular inline duct ventilation fan, also known as an exhaust blower, used for improving air circulation in ducted systems.
It is suitable for residential, commercial, and industrial applications such as grow tents, bathrooms, and offices.
The fan uses a backward-curved impeller design and an external rotor motor for efficient airflow and pressure.
It typically features a grounded power cord and an external terminal box with an IP55 protection class.
The casing is often made from galvanized steel, which is corrosion-resistant