TOP-VIGOR 6 Inch HVAC Duct Manual Volume Backdraft Damper, Full Stainless Steel Airflow Control for Range Hoods, Fans, Pellet Stove Pipes, Dryer Vents, Adjustable Volume Damper with Sleeve (1 Pc)

【Full Stainless Steel Construction】Port Outer Diameter: 150mm / 6""; Length: 190mm / 7.5"". This 6 inch manual backdraft damper is made entirely from high-quality stainless steel, including both the body and the flap, ensuring long-lasting durability and high strength for reliable performance in all conditions.. 【Manual Air Flow Adjustment】The damper has a scale for accurate airflow control. Use the manual handle to adjust airflow from multiple angles. Install it where the handle is easily accessible to maintain optimal room temperature and prevent backdrafts.. 【Excellent Air Tightness】 Features a rubber silicone seal that ensures a tight closure, preventing air leaks when the damper is closed. This improves system efficiency and helps reduce energy waste, with smooth, quiet operation.. 【Easy Installation】 Quick and hassle-free installation. Simply slide the damper into the duct and secure it with pipe clamps or tape. No specialized tools are required, making it perfect for DIY installation or professional use.. 【Versatile for HVAC Systems】Ideal for controlling airflow in various HVAC systems, ducts, and ventilation. Suitable for air conditioning, dryer vents, exhausts, range hoods, heating systems, fans, and other residential, commercial, and industrial applications.