DL Wholesale Backdraft Damper, 4″

DL Wholesale Backdraft Damper

Made of galvanized steel. Prevents reverse air flow when fans are shut off. Saves CO2 and prevents odors from flowing backward. Rubber gasket pre-installed on exterior for an airtight seal.

Available in:

• 4″
• 6″
• 8″
• 10″
• 12″

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