7" Insulated Aluminum Flexible HVAC Duct R-4.2 – 25' Length Adjustable Return Just run your finger along

Just run your finger along the edge of the top plate and you will find a smooth finished surface

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

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

+ Product Details Size – 10" x 24" or 24" x 10" is the size for the duct opening measurement only

+ Product Details Size – 8" x 20" or 20" x 8" is the size for the duct opening measurement only

7" Insulated Aluminum Flexible HVAC Duct R-4.2 – 25' Length Adjustable Return Just run your finger along+ 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