16" Insulated Aluminum Flexible HVAC Duct R-6.0 – 25' Length Brazing Solder Rods + Product Details Size -

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

Optimal Airflow: Experience 25% greater airflow

to Ensure Perfect Smooth Finish

1x Wall Cover

16" Insulated Aluminum Flexible HVAC Duct R-6.0 – 25' Length Brazing Solder Rods + 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 6. 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