18" Insulated Aluminum Flexible HVAC Duct R-6.0 – 25' Length w20h20 + Product Details Size -

+ Product Details Size - The listed 6" diameter refers specifically to the size of the duct opening

actual front end outer dimensions are approximately 22 5/8" width X 22 5/8" height

Filter Size - 33

The snap-lock/push-open technology allows easy access and installation on DryWall

actual front end outer dimensions are approximately 10 5/8" width X 12 5/8" height

18" Insulated Aluminum Flexible HVAC Duct R-6.0 – 25' Length w20h20 + 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