12" Insulated Aluminum Flexible HVAC Duct R-6.0 – 25' Length 2-Way actual front end outer dimensions

actual front end outer dimensions are approximately 27

+ Product Details Size – 8"w X 12"h is the size for the duct opening measurement only

electrical

+ Product Details Perfect Fit & Easy Sizing - Designed for a 12" x 20" or 20" x 12" duct opening (measured at the opening)

+ Product Description Introducing the 8" Radial Damper – Your Solution for Controlled Airflow

12" Insulated Aluminum Flexible HVAC Duct R-6.0 – 25' Length 2-Way actual front end outer dimensions+ 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