4" Insulated Aluminum Flexible HVAC Duct R-4.2 – 25' Length White allow you to customize airflow

allow you to customize airflow direction with ease

actual front end outer dimensions are approximately 4

By means of the smooth surface

+ Product Spec Sheet Corner Baseboard Grille Spec Sheet

+ Product Details High Quality - Aluminum housing on the outside and on the inside for the best insulation value

4" Insulated Aluminum Flexible HVAC Duct R-4.2 – 25' Length White allow you to customize airflow+ 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 4. 2 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