16" Insulated Aluminum Flexible HVAC Duct R-6.0 – 25' Length Oval to Round 90-Degree Boot + Product Details Perfect Fit

+ Product Details Perfect Fit & Easy Sizing - Designed for a 8" x 22" or 22" x 8" duct opening (measured at the opening)

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

75" Width X 23

+ Product Details Size – 4"w X 8"h is the size for the duct opening measurement only

meaning fewer dust particles and other air impurities can pass through the filter

16" Insulated Aluminum Flexible HVAC Duct R-6.0 – 25' Length Oval to Round 90-Degree Boot + Product Details Perfect Fit+ 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