Brass Elegans 116E AB Solid Cast Brass Contemporary 4-Inch by 12-Inch Floor Register, Antique Brass Finish Model Heavy solid cast brass construction will not bend or warp Powder coated adjustable steel damper with no exposed edges to rust is screwed to the faceplate for easy removal Durable high quality decorative finishes Outer dimensions of brass face plate are 5 inch by 13 1/8 inch fits 4 inch by 12 inch opening Attractive contemporary design