14" Insulated Aluminum Flexible HVAC Duct R-8.0 – 25' Length 18" Diameter The design eliminates noise and

The design eliminates noise and prevents louvers from vibrating

thanks to counter-sunk screw holes and included screws

Operating temperature from -40°f to +248°f [-40°c to +120°c]

actual front end outer dimensions are 11

14" Insulated Aluminum Flexible HVAC Duct R-8.0 – 25' Length 18" Diameter The design eliminates noise and+ 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