Backdraft Damper 4"
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Atmosphere’s all new galvanized steel back draft dampers fit directly into the duct simplifying installation. They feature a shaft for each of the 2 flaps so to prevent jamming. Also, the flaps close onto a perimeter gasket ensuring the best air seal and quiet operation.

  • Item #: VTBDD4

Backdraft Damper 4"

Sale Price: $16.64
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