View 1 of 6 Inch Backdraft Damper, HG POWER 3-in-1 Damper, Flange, Duct Adaptor with Butterfly Back Check Valve for Kitchen, Panel Size: 8", Compatible Duct Size: 6"-7"

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View 1 of 6 Inch Backdraft Damper, HG POWER 3-in-1 Damper, Flange, Duct Adaptor with Butterfly Back Check Valve for Kitchen, Panel Size: 8", Compatible Duct Size: 6"-7"View 2 of 6 Inch Backdraft Damper, HG POWER 3-in-1 Damper, Flange, Duct Adaptor with Butterfly Back Check Valve for Kitchen, Panel Size: 8", Compatible Duct Size: 6"-7"