16" Insulated Aluminum Flexible HVAC Duct R-4.2 – 25' Length Floor Grille + Product Details Size –

+ Product Details Size – 4"w X 14"h is the size for the duct opening measurement only

R Value Rating of Insulation - R3

The premium plated finish and modern design make it a luxurious and impressive addition to your home decor

R value rating of insulation - r3

16" Insulated Aluminum Flexible HVAC Duct R-4.2 – 25' Length Floor Grille + 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