Gravity Back Draft Damper - with flange, damper is 12" sq. 2" deep, O.D. of flange is 14" sq. for DR12H
SKU# Gravity-Draft-Damper-w-flange-for-dr12h-022-Q1
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Gravity Back Draft Damper - with flange, damper is 12" sq. 2" deep, O.D. of flange is 14" sq. for DR12H
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