14"w X 12"h Aluminum Adjustable Return/Supply HVAC Air Grille w6h6 +Product Details Size – 2"h

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

no exceptions

And is classified as Class 1 Fire Proof - B1

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

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14"w X 12"h Aluminum Adjustable Return/Supply HVAC Air Grille w6h6 +Product Details Size – 2"h+ 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