14"w X 12"h Aluminum Adjustable Return/Supply HVAC Air Grille w6h6 accordion-header h3 { margin: 0

accordion-header h3 { margin: 0

And is classified as Class 1 Fire Proof - B1

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

+Product Details Size – 2"h x 12"w is the size for the duct opening measurement only

Insulation – A thick blanket of fiberglass insulation provides you with an R-Value of 8

14"w X 12"h Aluminum Adjustable Return/Supply HVAC Air Grille w6h6 accordion-header h3 { margin: 0+ Product Details Size 14"w X 12"h is the size for the duct opening measurement only, actual front end outer dimensions are approximately 15. 85" width X 13. 85" height. High Quality Rigid aluminum construction with counter sunk screw holes (screws included) and no sharp edges. Installation Location Sidewall and ceiling. Design Unrestricted airflow for your HVAC system adjustable one way louver with full horizontal airflow directional control single