

The FB218 Insulated Flex Duct (Part Number: 13102407H) is a versatile solution for heating, air conditioning, and ventilation systems. With a size of 7" and an R Value of 8.0, this duct is designed to provide efficient thermal insulation. Its silver jacket, reinforced with a fiberglass scrim, ensures durability and longevity. The double-ply black polyester core enhances airflow while maintaining structural integrity.