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Feature

Flush fit register booster increases airflow to under-performing registers improving comfort in rooms that are too hot or too cold
Works automatically with forced air systems
The quiet, 3-speed dual fans pull extra air out of weak registers, boosting airflow by up to 85%

Description

Flush fit register booster increases airflow to under-performing registers improving comfort in rooms that are too hot or too cold. Works automatically with forced air Systems. The quiet, 3-speed dual fans pull extra air out of weak registers, boosting airflow by up to 85%. push button function controls. Fits a 4" X 10" Wall or floor register by simply replacing the existing wall or floor register. 12V (volt) - safe for children and pets. 6' Cord. 1 year limited warranty.