Backdraft Damper BD2A2 Ruskin
The BD2 dampers offer backdraft protection in light to medium duty applications that demand less than 12 cfm per square foot of leakage at 1/2" w.g. Non-metallic blade-to-blade seal provides quiet operation during the highest spot velocities. The damper's good looking appearance is maintained by sturdy, corrosion resistant aluminum construction. Contemporary styling features blades that overlap the frame for optimum resistance to weather.