335
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Aluminum Backdraft Damper 366

16 Gauge Galvanized Steel Intake or Discharge Back Draft Damper 388
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Galvanized Steel Round Backdraft Damper 389
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Aluminum Round Backdraft Damper 390
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Stainless Steel Round Backdraft Damper 400

Heavy Duty Teardrop Design Formed Steel Backdraft Damper 500-B, 501-B, 502-B
Pressure Relief Damper
Light Duty Pressure Relief Backdraft Damper 503
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Light Duty Stainless Steel Backdraft Damper 655
Aluminum Backdraft Damper
Extruded Aluminum Backdraft Damper 850

Extruded Aluminum Teardrop Blade Backdraft Damper 900

Formed Steel Frame with Extruded Aluminum Teardrop Blade Backdraft Damper