10" X 18" or 18" X 10" Heavy Duty Floor Grille - Fixed Blades Air Grille - Brown [Outer Dimensions: 11.75 X 19.75] Color_Gray + Product Details Size –

+ Product Details Size – 12"w X 30"h or 30" x 12" is the size for the duct opening measurement only

+ Product Details Size – 36"w X 34"h is the size for the duct opening measurement only

Durable Material - High Quality Shatterproof Rustproof plastic material with the strongest magnets for easy and secure attachment to your floor register

boosting your HVAC system's efficiency

4" X 14" Brass Victorian Floor Register Grille - Modern Contempo Decorative Grate - HVAC Vent Duct Cover - Brass Plated

10" X 18" or 18" X 10" Heavy Duty Floor Grille - Fixed Blades Air Grille - Brown [Outer Dimensions: 11.75 X 19.75] Color_Gray + Product Details Size –+ Product Details Size 10"w X 18"h or 18" x 10" is the size for the duct opening measurement only, actual front end outer dimensions are approximately 11. 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