Excellent Airflow: Breathe easy with the roof vent kit including 5FT aluminum ducting and durable duct clamps - the powerful ventilation upgrade your home deserves! Comes with pre-drilled mounting holes for easy installation, making it quick and convenient even for those without extensive experience Ventilation performance: The specially designed roof vent cap ensures effective ventilation, allowing fresh air to circulate indoors and reducing bathroom humidity and odors.Ideal for use in bathrooms or kitchens, with a removable cap that can also be used to vent clothes dryers Durability and Longevity: The advanced waterproof design ensures the roof vent is waterproof and effectively prevents rainwater from entering.The excellent powder coating prevents rust, ensuring the product's resistance to corrosion Comprehensive Protection: Equipped with a sturdy cover and evenly spaced mesh, establishing a robust protective structure to guard the roof vent against small animals, birds, rain, snow, leaves, debris, and other interferences.The mesh provides better ventilation while ensuring safety during use Versatile Applications: Designed for maximum ventilation and protection, suitable for use in conjunction with kitchen and roof exhaust systems.Can be used with 4-inch ducts and exhaust fans to achieve effective indoor air circulation.