The Black Plastic 4 in. Roof Cap provides a durable, weather-resistant termination for 4-inch exhaust duct systems. Made from UV-resistant plastic, this roof cap features a hooded design with an integrated backdraft damper to help prevent rain, debris, and outside air from entering the duct while maintaining efficient airflow. Ideal for bathroom exhaust fans, dryer vents (where permitted), and kitchen range hood ventilation.

• Fits standard 4-inch round duct systems
• Durable UV-resistant black plastic construction withstands outdoor weather conditions
• Integrated backdraft damper helps prevent drafts and outside air infiltration