

The FB218 Insulated Flex Duct (Part Number: 13102410H) is designed to enhance your HVAC system's efficiency with an R Value of 8.0, ensuring optimal insulation. The duct's grey polyester jacket reinforced with fiberglass scrim and double-ply black polyester core ensure durability and longevity. With 25-foot lengths, this duct is UL-listed and GREENGUARD listed for microbial resistance. For precise thermal control and ventilation, trust the FB218 Insulated Flex Duct.