16"w X 20"h Aluminum Adjustable Return/Supply HVAC Air Grille Powder-Coat Every grille has a front

Every grille has a front end frame that will overlap at the wall joint

+ Product Description Check out one of our most attractive and stylish grills

+ Product Details Size – 20" x 20" is the size for the duct opening measurement only

Actual Front End Outer Dimensions Are 12" Width X 6" Height - SEE IN DESCRIPTION HOW TO MEASURE A GRILLE

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16"w X 20"h Aluminum Adjustable Return/Supply HVAC Air Grille Powder-Coat Every grille has a front+ Product Details Size 16"w X 20"h is the size for the duct opening measurement only, actual front end outer dimensions are approximately 17. 85" width X 21. 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