18" Insulated Aluminum Flexible HVAC Duct R-8.0 – 25' Length Color_Red Oak Wood the second number represents the

the second number represents the height

furnishing your modern dream home

Tough reinforced metallized polyester jacket - tear and puncture resistant

background-color: #5296DD

3/4" - 2981 PSI

18" Insulated Aluminum Flexible HVAC Duct R-8.0 – 25' Length Color_Red Oak Wood the second number represents the+ 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 8. 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