Product Dimensions: The round white eaves ventilation panel measures 14cm in size, is 7.6cm thick, has a 9.5cm flange opening, and is designed for 10cm ducts, fans, inline duct fans, exhaust fans, etc. Please check your duct dimensions to choose the correct ventilation opening. Built-in Filter: The eaves ventilation panel is equipped with a removable, built-in filter for proper airflow. This prevents dirt, rain, and small insects from entering your home while providing fresh air. This ensures a comfortable, clean, and healthy life for you and your family. High-Quality Material: The eaves ventilation cover is made of high-quality ABS material, which is sturdy and durable, waterproof, and rust-resistant. The panel and the black cover are removable for easy cleaning and maintenance. The black cover comes with a side cover to ensure the hose is securely fastened and does not come off. Easy to Use: The ventilation cover is lightweight and portable, with a simple design and easy to use. The bottom of the vent is suitable for 4-inch ducts, fans, inline duct fans, exhaust fans, etc. Installation is simple and safe. Wide application: The ABS louvered grille cover for dryer ventilation is suitable for wall and ceiling mounting and ideal for kitchens, bathrooms, living rooms, bedrooms, conference rooms, offices and other places where ventilation is needed.