4" Insulated Aluminum Flexible HVAC Duct R-6.0 – 25' Length Compatible with Duct 8" ensuring a secure connection

ensuring a secure connection

+ Product Spec Sheet Return Air Grille Spec Sheet

+ Product Details Size – 28" x 28" is the size for the duct opening measurement only

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

and crafted from powder-coated stainless steel for exceptional durability

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