8" Insulated Aluminum Flexible HVAC Duct R-4.2 – 25' Length w10h10 This grill comes in four

This grill comes in four different designs

with no sharp edges to worry about

+ Product Details Size - 30"w X 10"h is the size for the duct opening measurement only

875" width X 9

display = 'none'

8" Insulated Aluminum Flexible HVAC Duct R-4.2 – 25' Length w10h10 This grill comes in four+ 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