The register that you see here has the louver dimension of 4” x 14”. This can be used for large spaces that can be made to look more airy and fresh. The register comes in different looks that can be used to match with the look of your decor. There are light and dark hues that can be used in matching the rest of the decor in different spaces. The cast iron used in the making is of good quality and comes in a smooth finish.