Hart & Cooley® Return Air Grille, Series: 650, 12 in W x 20 in H, 11-1/2 in Duct Width, 19-29/32 in Duct Height, 13-3/4 in Overall Width, 5/16 in Overall Depth, 20 deg Deflection, 1/3 in Blade Spacing, Steel, Bright White Enamel, Domestic