Draft Blocker 12'' Inch - Backdraft Damper - Draft Stopper - Backflow Preventer - Inline Fan Vent Deflector - One-Way Airflow Ducting - Dryer Duct Connector with Backdraught Flap

Additional Details from the Manufacturer

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• DIMENSIONS – Fits into Ø12.5 Inch round ducts; Insertion neck diameter: 12.36 Inch. Total width: 4.72 Inch. Precision-engineered for a tight internal fit inside metal ventilation pipes for reliable, airtight performance.
• Damper has back pressure valve which is equipped with a spring-loaded split flap closure and allows airflow in one direction only, designed for use in air conditioners (AC), dryers, exhaust, extractor or range hoods, heating ducts, vents and other HVAC applications for kitchen, bathroom and other desired installation locations.
• Damper has back pressure valve which is equipped with a spring-loaded split flap closure and allows airflow in one direction only, designed for use in air conditioners (AC), dryers, exhaust, extractor or range hoods, heating ducts, vents and other HVAC applications for kitchen, bathroom and other desired installation locations.
• Damper has back pressure valve which is equipped with a spring-loaded split flap closure and allows airflow in one direction only, designed for use in air conditioners (AC), dryers, exhaust, extractor or range hoods, heating ducts, vents and other HVAC applications for kitchen, bathroom and other desired installation locations.
• Damper has back pressure valve which is equipped with a spring-loaded split flap closure and allows airflow in one direction only, designed for use in air conditioners (AC), dryers, exhaust, extractor or range hoods, heating ducts, vents and other HVAC applications for kitchen, bathroom and other desired installation locations.