12" Insulated Aluminum Flexible HVAC Duct R-4.2 – 25' Length Insulated Line Set + Product Details Size –

+ Product Details Size – 8" x 30" or 30" x 8" is the size for the duct opening measurement only

Traditional HVAC systems were designed for cold air

this grille seamlessly drops into the designated place

With our extensive selection of Grilles

12" Insulated Aluminum Flexible HVAC Duct R-4.2 – 25' Length Insulated Line Set + 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 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