Register Booster Fan, Fits 4” x 10” Register Holes

Quiet Smart Vents: A fan system designed to improve wall and floor airflow in HVAC systems, bringing convenience to your life. One-touch heating/cooling control: With heating and cooling thermostats to coordinate the temperature of each room. The fan speed is adjustable from 1 to 10, and the LCD screen is clearly displayed. Simple installation: 4 x 10 inch registered booster fans X1, power adapter X1 are prepared for you, plug and play, the easiest and the best. Rugged Case: Custom made premium aluminum case, painted with a matte finish that is sturdy and good-looking. Product Warranty: To provide you with a lifetime warranty of the product, you can contact us if you have any questions.