AC Infinity Automatic Booster Duct Fan Inline Fan with Pressure Switch 4-Inch

Automatically activates the ventilation fan by detecting pressure change to eliminate manual adjusting. Differential pressure switch supports mounting in any position to improve directional airflow versatility. Features five fan speed levels powered by the PWM-controlled EC motor for more precise ventilation.

• Automatically activates the ventilation fan by detecting pressure change to eliminate manual adjusting.
• Differential pressure switch supports mounting in any position to improve directional airflow versatility.
• Features five fan speed levels powered by the PWM-controlled EC motor for more precise ventilation.
• Duct Size: 4″ | Dim: 6.9 x 11.9 x 7.4 in. | Airflow: 230 CFM | Noise: 60 dBA | Bearings: Dual Ball.
• Product Description.
• Automatic Pressure Sensing.
• Quiet and Energy Efficient Design.