4" Insulated Aluminum Flexible HVAC Duct R-8.0 – 25' Length 2-Way actual front end outer dimensions

actual front end outer dimensions are approximately 29

width: 100%

5" - SEE BELOW IN DESCRIPTION HOW TO MEASURE A GRILLE

Choose our premium HVAC grilles and registers for long-lasting durability

This grille is ideal for both sidewall and ceiling installations

4" Insulated Aluminum Flexible HVAC Duct R-8.0 – 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 8. 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