Replacing or buying new Durable Floor Registers/Vents for your Home: VR 100 Cast Iron 18″ X 18″ size fits most Standard air duct opening sizes for floors and walls – Indoor use. These floor registers are hand-crafted and finished. Vent overall top Face Plate Size is 19-1/2″ x 20″. The face plate thickness is 5mm. Designs/Pattern: Freshen up the look of your home with the stylish and attractive decorative Tudor Mushroom design, available in various colors and sizes. Matches with Air Return Grills. Suitable for traditional, old, or contemporary home rooms. Also available in Cast Aluminum, it comes in various colors and sizes. This pattern is available in matching Air return Grills, and over 100 sizes are available in stock. It will add beauty and a rich look to your traditional, old, contemporary home rooms. Skilled craftsmen make it and offer a beautiful contrast with your flooring, whether carpet, tile, or wood! It comes in Cast Aluminum, also.