18" X 30" Or 30" X 18" Heavy Duty Floor Grille - Fixed Blades Air Grille - Brown [Outer Dimensions: 19.75 X 31.75] 8" Round Duct Pipe + Product Details Size -

+ Product Details Size - 16"w X 10"h X 2"d (for duct opening measurement only)

oxidation & rust from water & moisture that lasts longer requiring less maintenance – Save money with this energy efficient material

+ Product Details Size – Duct end cap is 24" X 10" | 26-gauge galvanized steel end cap

Technical Specifications – Voltage: - 230V AC 50-60Hz

+ Product Details Perfect Fit & Easy Sizing - Designed for a 8" x 20" or 20" x 8" duct opening (measured at the opening)

18" X 30" Or 30" X 18" Heavy Duty Floor Grille - Fixed Blades Air Grille - Brown [Outer Dimensions: 19.75 X 31.75] 8" Round Duct Pipe + Product Details Size -+ Product Details Size 18"w X 30"h or 30" x 18" is the size for the duct opening measurement only, actual front end outer dimensions are approximately 19. 75" width X 31. 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