5" Insulated Aluminum Flexible HVAC Duct R-8.0 – 25' Length Fixed Blades with Damper this grille boasts a natural

this grille boasts a natural warmth and fine finish

order a 14x20

they seamlessly integrate into your space

875" height

1/2" - 3119 PSI

5" Insulated Aluminum Flexible HVAC Duct R-8.0 – 25' Length Fixed Blades with Damper this grille boasts a natural+ 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 8. 0 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