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

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

+ Product Details Size - 14"w X 36"h is the size for the duct opening measurement only

+ Why Hvac Premium HVAC Premium has been providing superior quality service for many years

Its smooth

12" Insulated Aluminum Flexible HVAC Duct R-8.0 – 25' Length 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