12"W X 16"H [Duct Opening] Steel Air Vent Return Grille - HVAC VENT DUCT COVER DIFFUSER - [Outer Dimensions: 13.75"W X 17.75"H] flat stamped steel } /* MORE SPACE BETWEEN

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

+ Product Details Size – 30"w X 8"h is the size for the duct opening measurement only

+ Product Details Size – 8" x 24" or 24" x 8" is the size for the duct opening measurement only

12"W X 16"H [Duct Opening] Steel Air Vent Return Grille - HVAC VENT DUCT COVER DIFFUSER - [Outer Dimensions: 13.75"W X 17.75"H] flat stamped steel } /* MORE SPACE BETWEEN+ Product Details Size 12"w X 16"h is the size for the duct opening measurement only, actual front end outer dimensions are approximately 13. 75" width X 17. 75" height. Design Easy unrestricted airflow for your HVAC system 50 angled to provide maximum airflow. High Quality Solid stamped steel with counter sunk screw holes (screws included) and no sharp edges. Powder Coat Finish Smooth, shiny, scratch resistant, beautiful. Looks like it was just