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UL Listed Dampers > Fire Dampers

FDD-AOW

Curtain Fire Damper - 1-1/2 Hour - Dynamic - Sleeved - Out of Wall

FDD-AOW Product Image

UL classified for installation the grille and damper assembly does not allow for mounting in the plane of the fire barrier with a fire rating of less than 3 hours. This damper may be installed vertically or horizontally in dynamic HVAC systems that continues to run in the event of fire.

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