6 Inch Roof Vent Cap with Damper, Removable, Galvanized Steel, for Ventilation System

Excellent Airflow: The HONGUAN roof vent with backdraft damper delivers airflow of up to 75%, significantly outperforming other products with airflow less than 50%, ensuring superior ventilation.Durable Construction: Made of heavy gauge galvanized steel, this roof vent cap is highly resistant to corrosion and designed for lasting durability.Easy Installation: Includes a pipe extension for easy connection to flex ducting and four mounting holes for a secure installation on 4-inch bathroom exhaust fan roof jacks.Multi-Functional: Suitable for a variety of home ventilation systems, the HONGUAN roof vent works with 6-inch ducts and exhaust fans, perfect for kitchens, bathrooms, attics, and more.Buy with Confidence: This product is patent-pending, and HONGUAN is dedicated to creating the most professional roof vents for modern homes.