6" Insulated Aluminum Flexible HVAC Duct R-6.0 – 25' Length Compatible with Duct 10" The total outer size of

The total outer size of this grille is the listed size plus 3"

+ Product Details Size - The listed 8" diameter refers specifically to the size of the duct opening

This 22" X 8" end cap is constructed with 26-gauge galvanized steel

+ Product Details Size - 30"w X 8"h is the size for the duct opening measurement only

or special occasions

6" Insulated Aluminum Flexible HVAC Duct R-6.0 – 25' Length Compatible with Duct 10" The total outer size of+ 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