AC Infinity Automatic Duct Fan 4", Inline Fan with Differential Fan Pressure Switch, Air Vent Booster Fan for Industrial HVAC Ducting Ventilation Exhaust Systems

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Product description

  • Differential pressure switch supports mounting in any position to improve directional airflow versatility.
  • Automatically activates the ventilation fan by detecting pressure change to eliminate manual adjusting.
  • 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

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