4" Insulated Aluminum Flexible HVAC Duct R-4.2 – 25' Length Color_R-4.2 Yellow Do not measure the overall

Do not measure the overall size of the register itself

and versatile for any project

Quality Packaging – Carefully shrink wrapped with cardboard backing to prevent damage in shipment

& EN 13180 standards

order a 20x14 grille

4" Insulated Aluminum Flexible HVAC Duct R-4.2 – 25' Length Color_R-4.2 Yellow Do not measure the overall+ 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