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Feature

Highest Rated Premium Airflow Control Backdraft Dampers
Spring-loaded butterfly aluminum damper blades encased in a 20-guage galvanized steel housing
May be installed in any position or orientation to prevent backflow and designed for use in AC, Heating, Vent and other HVAC application temperatures from -22 to 180 degrees F (Fahrenheit)
Extremely easy and secure inline duct insertion installation. Available in 4", 5", 6", 7", 8", 10", 12", 14" and 16".
Minimal pressure to open. 0.04 to 0.08 in. w.g. Maximum automatic back flow protection

Description

American Aldes delivers the premier backdraft damper solution favored for residential and commercial installations around the world. The highly rated backdraft damper provides a complete seal, with no leakage to prevent backdraft airflows. It has been designed to provide almost zero pressure to open the damper flaps when air is flowing the correct direction. The entire assembly inserts into the ductwork for easy installation and prevent leakage. Available in 4", 5", 6", 7", 8", 10", 12", 14" and 16".