4"W X 26"H [Duct Opening] Steel Air Vent Return Grille - HVAC VENT DUCT COVER DIFFUSER - [Outer Dimensions: 5.75"W X 27.75"H] Color_Black and the second number represents

and the second number represents the height

and brown – to harmonize with your interior theme

+ Product Details Size - 18"w X 14"h is the size for the duct opening measurement only

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Premium Plated Finish and Modern Contempo Design Forming a Luxurious Piece

4"W X 26"H [Duct Opening] Steel Air Vent Return Grille - HVAC VENT DUCT COVER DIFFUSER - [Outer Dimensions: 5.75"W X 27.75"H] Color_Black and the second number represents+ Product Details Size 4"w X 26"h is the size for the duct opening measurement only, actual front end outer dimensions are approximately 5. 75" width X 27. 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 waxed.