Hart & Cooley by Duravent Return Air Grille, Horizontal, Series: 650, 10 in W x 10 in H, 9-1/2 in Duct Width, 9-29/32 in Duct Height, 11-3/4 in Overall Length, 11-3/4 in Overall Width, 20 deg Deflection, 1/3 in Blade Spacing, Steel, Bright White Enamel, Domestic,