4" Insulated Aluminum Flexible HVAC Duct R-6.0 – 25' Length Color_Aluminum Actual Front End Outer Dimensions

Actual Front End Outer Dimensions Are 42" Width X 18" Height - SEE IN DESCRIPTION HOW TO MEASURE A GRILLE

+ Product Description Introducing HVAC Premium's Aluminum Adjustable Return Grill – the key to enhanced air control and energy efficiency

the ultimate tool for effortless cutting of thin and thick PVC tubing below 36mm in diameter

+ Product Details Size – 12"w X 24"h is the size for the duct opening measurement only

actual front end outer dimensions are approximately 38 5/8" width X 18 5/8" height -

4" Insulated Aluminum Flexible HVAC Duct R-6.0 – 25' Length Color_Aluminum 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