Fabricated from premium iron with construction reinforced by screws for enhanced durability and long service life. This inline duct fan is designed to improve airflow in forced air heating and cooling systems while maintaining system balance. Features balanced blades to reduce noise and vibration. The motor is equipped with permanently lubricated bearings for quiet operation. Fluted on both ends to easily connect ducting. Lightweight and portable design allows for flexible installation in various locations. Suitable for use in workshops, indoor growing areas, warehouses, and similar environments. Ideal for boosting supply air, return air, and ventilation applications. Condition: 100% New Color: Silver Material: Galvanized steel casing Diameter: 4 inch (100mm) Input Power: 25W Rated Voltage: 220V Airflow Capacity: 140m³/h Rated Frequency: 50Hz Operating Noise: 30–34dB Rated Speed: 2800rpm Package Includes: 1 x Blower