12" Insulated Aluminum Flexible HVAC Duct R-8.0 – 25' Length Insulated Line Set By means of the smooth

By means of the smooth surface

Each grille is securely shrink-wrapped with a cardboard backing to prevent damage during shipment

Its smooth

provides a modern look and quiet operation due to its half-inch by half-inch cube design

+ Product Details Size - 14"w X 36"h is the size for the duct opening measurement only

12" Insulated Aluminum Flexible HVAC Duct R-8.0 – 25' Length Insulated Line Set By means of the smooth+ 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