Manual duct volume damper for backdraft dampers, HVAC air duct branch air balancing for range hoods, fans (2 pieces, 6 inches)

Appropriate Size: The bending end interface of the air duct damper measures approximately 5.87 inches / 14.92 cm in diameter, while the other end is approximately 6 inches / 15.24 cm in diameter and 6.25 inches / 15.87 cm in height, making it suitable for inserting 6-inch ventilation ducts.
Easy to Install: Simply slide the air duct damper into the duct and screw it into an easily adjustable position, then conceal the seam with tape to complete the installation. It is also recommended that you seal all connections with sealant.

of pipes to prevent air leaks and improve the efficiency of the HVAC system. Use for air balancing: The HVAC damper is a simple manual damper wrapped in galvanized iron sheet sleeves; Each branch should be equipped with an air duct damper to regulate airflow by adjusting the damper's position, which can help redirect it to specific areas in the house; The 6-inch rear draft damper is not completely sealed and is applied For air balancing, not air termination.
Galvanized iron material: The 6-inch ventilation duct damper is made of high-quality galvanized iron with high hardness and high-temperature resistance, not easy to deform or corrode, and can effectively prevent the air duct damper from moisture and deterioration, which can be used for a long time.
Fits Most Occasions: The 6-inch ventilation duct damper can be used In most situations, including air conditioning, drying fans, exhausts, range hoods, heating systems, fans, vents, and other residential, commercial, and industrial HVAC applications, these are practical tools to use.