7" Insulated Aluminum Flexible HVAC Duct R-8.0 – 25' Length Color_R-4.2 Yellow + Product Details Size –

+ Product Details Size – 12"w X 4"h is the size for the duct opening measurement only

this piece is the perfect touch of class you need to add to your decor

1/2" White insulation will give you a good R value of 3

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look no further than HVAC Premium

7" Insulated Aluminum Flexible HVAC Duct R-8.0 – 25' Length Color_R-4.2 Yellow + 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