EZ-FLO 61657 Steel Sidewall and Ceiling Return Air Filter Grille, 10" x 10", White FINISH: White Powder-Coated Smooth Finish quickly updates any room or office DIMENSIONS: Duct opening measurements: 10-inch x 10-inch, and the outer dimension measures 12-11/16-inch x 12-11/16-inch MATERIAL: All steel construction; high-impact, heavy-duty steel makes this air vent filter grille highly durable CONTENTS: This package includes a kit of screws to make installation easy and efficient EASY INSTALLATION: This return filter grille is easy to install on the sidewall or ceiling to ensure maximum airflow