7" Insulated Aluminum Flexible HVAC Duct R-6.0 – 25' Length Round Damper Ring Heavy Duty strong base is

Heavy Duty strong base is waterproof so you don't have to worry about rust or damage

+ Product Details Operating Temperature From -40°F To +248°F [-40°C To +120°C]

Actual Filter Size – 11 3/4"w x 7 3/4" x 1"

Crafted with top-notch quality aluminum

7" Insulated Aluminum Flexible HVAC Duct R-6.0 – 25' Length Round Damper Ring Heavy Duty strong base is+ 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