Register Booster Fan for 4 X 10 Floor Vent Duct Openings, 150 CFM Airflow, 17 Db

With up to 150 CFM and a 95.13° precision-angled air-guide grille designed to help reduce backflow, it sends more air forward for stronger circulation and faster relief. PREMIUM FLUSH-MOUNT LOOK—BUILT-IN, NOT BOLTED-ON: Sits flush and stays out of the way—so it won’t stick up, steal space, or look like an add-on.