4" Insulated Aluminum Flexible HVAC Duct R-6.0 – 25' Length Compatible with Duct 8" + Product Details Size –

+ Product Details Size – 8" x 8" is the size for the duct opening measurement only

ensuring your essentials are always within arm's reach

+ Product Spec Sheet Return Air Grille Spec Sheet

+ Product Details Size – 12" x 36" or 36" x 12" is the size for the duct opening measurement only

Easy Installation – Just pop the diffuser right into the wall duct hole and the side springs will hold it right into place so that it looks clean

4" Insulated Aluminum Flexible HVAC Duct R-6.0 – 25' Length Compatible with Duct 8" + 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