Hon&Guan 8 inch 16 FT Long Air Ducting with Damper

Upgrade design The 8 inch damper has two new inwardly recessed ribs on the top and bottom, an increase in thickness to 0.6mm, and 3 springs instead of 2, ensuring that the product is more robust and less prone to damage., Lightweight valve wings The valve wings open under the pressure created by the airflow; when the air flows in the opposite direction, it is automatically closed under the action of the spring, so as to cut off the flow. Rubber ring ensure 100% closure and quiet closing., Installation method The 8 inch duct damper has an opening of 200 mm and a length of 88 mm. When installed horizontally, the springs should be positioned horizontally to allow for optimal opening and closing,Low Noise Silencer: Designed for reducing noise from fans and carbon filter systems, can decrease the noise by up to 50%, Energy-Efficient Ventilation This powerful inline duct fan speed of 2500 RPM can create the air flow of 623 CFM, Maximum power consumption is only 44W. Upgrade DC motor & low noise effectively circulating air, quickly move vast amount of air to exhaust odors.