Automatic Booster Duct Fan, Inline Fan with Pressure Switch, 4-Inch

* Inline duct fan for boosting airflow in ducting and vent systems to ensure heating or cooling delivery. * Automatically activates the ventilation

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The inductor 6-in corded in-line duct fan is engineered to overcome back pressure and boost air in forced air heating and cooling systems without upsetting the balance in the closed loop system. UL listed E227633 heating and cooling equipment UL 1995. 300 CFM free air to max boosted air 650 CFM. Thermally protected class B motor with automatic reset thermal fuse. Plugs right into the Ductstat, model DS100, (sold separately) for automatic temperature controlled on/of operation.

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Automatic Booster Duct Fan, Inline Fan with Pressure Switch, 4