Acorn Cast Iron Grilles. This iron grille is perfect for any room in your home, is easy to install, and has an undeniable aesthetic appeal. The grille adds beauty and character to any room in your home. From old home restoration to new construction, this Acorn grille will complement any style. It will harmonize effectively with a wide range of architectural styles, from Bungalow and Mission to Spanish and Contemporary. This grille is solid and durable; it is crafted with careful attention to product design, authenticity, and highest caliber; it can be used on all wood floors, tile, and wall-to-wall carpeting. Regardless of where in your house you decide to install this beautiful grille, it will accentuate your house decor and be a fantastic addition. Acorns Cast Iron Grilles are available with or without holes to accommodate floor or wall openings. Louver assemblies (airflow control) are available in 5 popular sizes. All have a traditional matte.