14"w X 12"h Aluminum Adjustable Return/Supply HVAC Air Grille Supply Grille Complies with industry standards of

Complies with industry standards of USA: ASTM D-882

Heavy Gauge Steel

75" width X 31

+ Product Details Size – 20"w X 10"h is the size for the duct opening measurement only

Great emphasis has been invested in the design of this product to prevent it from kinking in sharp bends & turns and to hold steady and at full diameter in all applications

14"w X 12"h Aluminum Adjustable Return/Supply HVAC Air Grille Supply Grille Complies with industry standards of+ 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