5" Insulated Aluminum Flexible HVAC Duct R-6.0 – 25' Length Aluminum - Cube Core /* more readable bullets */

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High Quality – Heavy-gauge all-steel construction

Design – Fixed Hinged for easy filter change & cleaning - uses a 1" thick filter

Actual Front End Outer Dimensions Are 14" Width X 5" Height - SEE IN DESCRIPTION HOW TO MEASURE A GRILLE

+ Product Details 6"w X 9"h is the size for the drywall opening measurement only

5" Insulated Aluminum Flexible HVAC Duct R-6.0 – 25' Length Aluminum - Cube Core /* more readable bullets */+ 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