7" Insulated Aluminum Flexible HVAC Duct R-6.0 – 25' Length Compatible With Duct 8in with actual front end outer

with actual front end outer dimensions of 10"

+ Product Details Size – 28"w X 30"h is the size for the duct opening measurement only

+ Product Description Introducing the 6" Butterfly Damper – Your Solution for Controlled Airflow

75"H – fits a 18" X 4" duct opening

7" Insulated Aluminum Flexible HVAC Duct R-6.0 – 25' Length Compatible With Duct 8in with actual front end outer+ 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