4" Insulated Aluminum Flexible HVAC Duct R-8.0 – 25' Length Copper Coil-Insulated Line Set + Product Details Size -

+ Product Details Size - 16"w X 8"h is the size for the duct opening measurement only

Works for all Air Conditioning applications including Ductless Mini-Split

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+ Product Details Size - 12"w X 14"h is the size for the duct opening measurement only

4" Insulated Aluminum Flexible HVAC Duct R-8.0 – 25' Length Copper Coil-Insulated Line Set + Product Details Size -+ 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