6" Insulated Aluminum Flexible HVAC Duct R-4.2 – 25' Length Color_White + Product Details Size –

+ Product Details Size – 20"w X 10"h is the size for the duct opening measurement only

positioning supply and return grills accordingly

Each grille is carefully packaged with cardboard backing to prevent damage during shipment

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

6" Insulated Aluminum Flexible HVAC Duct R-4.2 – 25' Length Color_White + 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