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Unique Bargains 3' HVAC Duct Manual Volume Damper, 2 Pack PP Adjustment Flame Retardant Airflow Backdraft Damper Control Beige

<ul><li>Color: Beige</li><li>Material: PP</li><li>Inner Diameter of Interface: 75 mm / 3 Inch</li><li>Overall Size: 130 x 4.5 mm / 5.12 x 0.18 inch (L*T)</li><li>Packing List: 2 x Duct Manual Volume Damper</li></ul>

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The manual volume damper is used for air volume regulation in an air ventilation system, widely used in HVAC industry. With that installed in your HVAC systems, you can easily control the air flow rate or close off an air duct if needed, to some extent, it will increase the energy efficiency of your system. Advantage 1. Made of thick PP Plastic, which has good hardness, durable, not easy to deform and corrosion, moisture proof and fade resistant, and can be used for a long time. 2. The side is designed with a rotary handle, which can adjust the air volume from multiple angles and is easy to operate; 3. With a smooth and flat interior design, can ventilate rapidly. Instruction Easy to install, just simply slide the volume damper into the pipe you are attaching to, and fix with pipe clamp and tape. NOTE: Please confirm the inner diameter of the air volume damper before placing an order and the recommended temperature range is -10 - 70 centigrade.