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Hart & Cooley® Return Air Grille, Series: 672, 10 in W x 20 in H, 9-1/2 in Duct Width, 19-29/32 in Duct Height, 21-3/4 in Overall Length, 11-3/4 in Overall Width, 79 sq-in, 40 deg Deflection, 1/2 in Blade Spacing, Steel, Bright White Enamel, Domestic