16" Insulated Aluminum Flexible HVAC Duct R-4.2 – 25' Length w24h24 Example: If your hole is

Example: If your hole is 20" wide by 14" tall

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+ Product Details Size – 10" x 30" or 30" x 10" is the size for the duct opening measurement only

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16" Insulated Aluminum Flexible HVAC Duct R-4.2 – 25' Length w24h24 Example: If your hole is+ 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