Backdraft Damper 4in
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DL Wholesale

Backdraft Damper 4in

Sale price$18.65
Made of galvanized steel. Prevents reverse air flow when fans are shut off. Saves CO2 and prevents odors from flowing backwards. Rubber gasket pre-installed on exterior for an air tight seal.
  • Prevents reverse air flow when fans are shut off.
  • Saves CO2 and prevents odors from flowing backwards.
  • Rubber gasket pre-installed on exterior for an air tight seal.

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