18" Insulated Aluminum Flexible HVAC Duct R-6.0 – 25' Length 8in diameter Actual Filter Size – 23

Actual Filter Size – 23 3/4"w x 25 3/4" x 1"

Use our 99

75" Width X 7

purposes with snap-lock/push-open technology and can be installed on to drywall

actual front end outer dimensions are approximately 18 5/8" width X 10 5/8" height

18" Insulated Aluminum Flexible HVAC Duct R-6.0 – 25' Length 8in diameter Actual Filter Size – 23+ 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