AIRTAP T4 White Register Booster Fan for 4x10 in. HVAC Vents, 10-Speed Quiet Fan with App Control

Boosts airflow from 4x10 inch HVAC registers for improved heating and cooling efficiency 10-speed control with features including heating/cooling triggers and timer programming app connectivity allows for settings, alerts, and climate data monitoring Premium anodized aluminum construction with CNC-machined details for a clean and modern appearance Operates quietly at 17 Dba with 130 CFM airflow for effective and noise- performance