8" X 18" Or 18" X 8" Heavy Duty Floor Grille - Fixed Blades Air Grille - Brown [Outer Dimensions: 9.75 X 19.75] 8" Round Duct Pipe accordion-title:hover { background-color: #f0f0f0

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Actual Filter Size – 21 3/4"w x 19 3/4" x 1"

For added protection

ensuring longevity and reliability

+ Product Details Size - 12"w X 16"h is the size for the duct opening measurement only

8" X 18" Or 18" X 8" Heavy Duty Floor Grille - Fixed Blades Air Grille - Brown [Outer Dimensions: 9.75 X 19.75] 8" Round Duct Pipe accordion-title:hover { background-color: #f0f0f0+ Product Details Size 8"w X 18"h or 18" x 8" is the size for the duct opening measurement only, actual front end outer dimensions are approximately 9. 75" width X 19. 75" height. High Quality High grade steel construction meant for high foot traffic areas. Installation Location Floor. Design Easy drop in installation Powder Coat Finish Smooth, shiny, scratch resistant, with no sharp edges. Looks like it was just waxed. Quality Packaging Carefully