5" Insulated Aluminum Flexible HVAC Duct R-4.2 – 25' Length w8h8 reducing electric bills and extending

reducing electric bills and extending HVAC machine lifespan

and home improvement remodeling specialists in completing their masterpieces

75" width X 11

9% Pure Copper meeting ASTM B280 standards

5" Insulated Aluminum Flexible HVAC Duct R-4.2 – 25' Length w8h8 reducing electric bills and extending+ Product Details High Quality Aluminum housing on the outside and on the inside for the best insulation value Insulation A thick blanket of fiberglass insulation provides you with an R Value of 4. 2 Energy Efficient Air tight inner core decreases the pressure loss and provides a more hygienic environment high energy efficient No fiberglass erosion into air stream Design Designed to withstand bends and sharp turns without kinking. Tough reinforced