Photo 1 of TA-VIGOR HVAC Duct 8 Inch Stainless Steel Backdraft Damper - Manual Adjustable Airflow Control Valve for Dryer Vent, Range Hood, Fans, Boiler Exhaust with Airtight Seal & Sleeve (1PC)

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Photo 1 of TA-VIGOR HVAC Duct 8 Inch Stainless Steel Backdraft Damper - Manual Adjustable Airflow Control Valve for Dryer Vent, Range Hood, Fans, Boiler Exhaust with Airtight Seal & Sleeve (1PC)Photo 2 of TA-VIGOR HVAC Duct 8 Inch Stainless Steel Backdraft Damper - Manual Adjustable Airflow Control Valve for Dryer Vent, Range Hood, Fans, Boiler Exhaust with Airtight Seal & Sleeve (1PC)