VIVOSUN 275 CFM 6 in. Inline Booster Duct Fan with Speed Controller for HVAC Exhaust Ventilation

The fan has a strong motor which features a permanently lubricated bearing that operates quietly and requires no maintenance; The quality steel housing makes it sturdy and built to last. A variable speed controller on the power cord enables the fan to run at different speeds; With this speed switch, you can adjust it to the desired airflow level. This duct fan is compact and light-weight enough to be installed in areas with little available space. Superior balanced centrifugal impeller for long service life and quiet operation.