6" Backdraft Damper (403006)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.
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|Dimensions||6 x 5 x 6|
Price: $12.22 / each
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— Ships from DL: Livermore, California USA.