18" X 24" Or 24" X 18" Heavy Duty Floor Grille - Fixed Blades Air Grille - Brown [Outer Dimensions: 19.75 X 25.75] Brazing Solder Rods + Product Details Size &

+ Product Details Size & Compatibilty - The 14" to 12" round metal pipe reducer & increaser 30 gauge is compatible with duct 14" to 12"

+ Product Details Size – 16" x 28" or 28" x 16" is the size for the duct opening measurement only

+ Product Details Perfect Fit & Easy Sizing - Designed for a 12" x 26" or 26" x 12" duct opening (measured at the opening)

with actual outer dimensions of 38

+ Product Details Size - 6"w X 36"h X 2"d (for duct opening measurement only)

18" X 24" Or 24" X 18" Heavy Duty Floor Grille - Fixed Blades Air Grille - Brown [Outer Dimensions: 19.75 X 25.75] Brazing Solder Rods + Product Details Size &+ Product Details Size 18"w X 24"h or 24" x 18" is the size for the duct opening measurement only, actual front end outer dimensions are approximately 19. 75" width X 25. 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