AC INFINITY AIRTAP T4 Register Booster Fan w/ Thermostat

New in box. A register fan designed to boost and improve existing airflow from register holes in home HVAC systems. Smart controller features 10-level speeds, heating and cooling triggers, and timer and cycle programming. Connect to our app via Bluetooth to unlock advance programs, set alarms & notifications, and view climate data. Premium anodized aluminum frame with CNC-machined detailing for a flush and clean appearance. ONLY FITS 4 x 12 IN. DUCT OPENINGS. Rear Casing: 3.93 x 12.04 in. Engine: Dual 92 mm. Airflow: 130 CFM. Noise: 17 Dba.