7" Insulated Aluminum Flexible HVAC Duct R-4.2 – 25' Length Adjustable Return + Product Details Size -

+ Product Details Size - 8"w X 30"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 – 8" x 20" or 20" x 8" is the size for the duct opening measurement only

and versatile for any project

Insulation density is 30kgs/cbm = 0

7" Insulated Aluminum Flexible HVAC Duct R-4.2 – 25' Length Adjustable Return + 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 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