16" Insulated Aluminum Flexible HVAC Duct R-4.2 – 25' Length Floor Grille color: #333

color: #333

Actual Front End Outer Dimensions Are 5

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Solid Rigid Steel Body For Durability and Reliability

High Quality – High-quality rust-free

16" Insulated Aluminum Flexible HVAC Duct R-4.2 – 25' Length Floor Grille color: #333+ 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