4" X 18" Or 18" X 4" Heavy Duty Floor Grille - Fixed Blades Air Grille - Brown [Outer Dimensions: 5.75 X 19.75] Round Damper Ring + Product Description Introducing our

+ Product Description Introducing our 12" x 14" or 14" x 12" Floor Grille - a reliable and durable air grill designed for exceptional performance and built to last

it ensures long-lasting durability

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+ Product Details Size - 16"w X 22"h is the size for the duct opening measurement only

There are many possible causes for these

4" X 18" Or 18" X 4" Heavy Duty Floor Grille - Fixed Blades Air Grille - Brown [Outer Dimensions: 5.75 X 19.75] Round Damper Ring + Product Description Introducing our+ Product Details Size 4"w X 18"h or 18" x 4" is the size for the duct opening measurement only, actual front end outer dimensions are approximately 5. 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