- Silent design: Reduce the sound output to only 28 dB-no harm or disturb for your life. Superior balanced blades and centrifugal impeller for quiet operation and long service life.
- Easy to adjust speed: With the variable speed controller on the power cord, you can optimize airflow and noise level for desired application. Turn the knob to control the vent fan to run at different speeds.
- Durable and safe: Strong motor of this duct blower is energy saving and requires no maintenance. Featuring overheating protection, the unit will automatically shut off if overheating is detected. The quality steel housing is sturdy.
- Easy to install: With a diameter of 4 inches, speed of 2990 RPM and 106 CFM airflow, this air exhaust fan is lightweight enough for quich removal and easy installation in areas with little available space
- Ducting: Size: 4 inch; length: 8 feet. Four-layer (PVC layer aluminum foil PET aluminum foil) can prevent light leaks.Temperature range: -22°F~212°F(-30℃～100℃). High-quality aluminum foil, high temperature resistant and corrosion resistant, long lasting
iPower 4'' Inline Booster Duct Fan with Speed Controller and Flexible Aluminum Ducting 8 Feet for HVAC Exhaust Ventilation, Bathroom, Attic, Basement and Kitchen, Low Noise
