14"w X 12"h Aluminum Adjustable Return/Supply HVAC Air Grille Supply Grille Great emphasis has been invested

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

It has an outer surface made of high-quality aluminum foil and an inner surface made of metalized PET with inside high-tensile spring steel wire

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3/4" - 2981 PSI

Heavy Gauge Steel

14"w X 12"h Aluminum Adjustable Return/Supply HVAC Air Grille Supply Grille Great emphasis has been invested+ 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