

The FB218 Insulated Flex Duct (part number 13102408H) is designed for heating, air conditioning, and ventilation systems. With a size of 8 inches and an R-Value of 8.0, this duct provides superior insulation. Its grey polyester jacket, reinforced with fiberglass scrim, and double-ply black polyester core ensure durability and efficient airflow. This duct comes in 25-foot lengths, making it perfect for various applications.