18" X 36" Or 36" X 18" Heavy Duty Floor Grille - Fixed Blades Air Grille - Brown [Outer Dimensions: 19.75 X 37.75] steel actual front end outer dimensions

actual front end outer dimensions are approximately 38 5/8" width X 8 5/8" height

+ Product Description Upgrade your HVAC system with a high-quality aluminum return grille designed for a clean

actual front end outer dimensions are approximately 30 5/8" width X 12 5/8" height

+ Product Details Size - 20"w X 14"h X 2"d (for duct opening measurement only)

18" X 36" Or 36" X 18" Heavy Duty Floor Grille - Fixed Blades Air Grille - Brown [Outer Dimensions: 19.75 X 37.75] steel actual front end outer dimensions+ Product Details Size 18"w X 36"h or 36" x 18" is the size for the duct opening measurement only, actual front end outer dimensions are approximately 19. 75" width X 37. 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