7" Insulated Aluminum Flexible HVAC Duct R-8.0 – 25' Length Supply Grille display === '') { dd

display === '') { dd

The design eliminates noise and prevents louvers from vibrating

during winter

Some of the best features aren't readily apparent

Solid Construction Designed For Floor Use

7" Insulated Aluminum Flexible HVAC Duct R-8.0 – 25' Length Supply Grille display === '') { dd+ 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