10" Insulated Aluminum Flexible HVAC Duct R-6.0 – 25' Length w12h12 actual front end outer dimensions

actual front end outer dimensions are approximately 18 5/8" width X 26 5/8" height

High Quality – high-quality steel with counter-sunk screw holes (screws included) and no sharp edges

+ Product Details Size – 28" x 28" is the size for the duct opening measurement only

High Quality – Extra Heavy Duty to withstand constant walk on situations

10" Insulated Aluminum Flexible HVAC Duct R-6.0 – 25' Length w12h12 actual front end outer dimensions+ 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 6. 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