The 4" x 25' Flexible Aluminum Dryer Vent Duct by Braxton Harris Company is designed for efficient ventilation in dryer installations. This duct is made from high-quality aluminum, providing excellent heat resistance and durability. Its flexible design allows for easy installation in tight spaces, while the 4" diameter ensures optimal airflow. This duct is ideal for both residential and commercial dryers, meeting industry standards for safety and performance. It effectively reduces lint buildup, enhancing dryer efficiency and safety.