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Hart & Cooley® Return Air Grille, Series: 672, 12 in W x 10 in H, 11-1/2 in Duct Width, 9-29/32 in Duct Height, 11-3/4 in Overall Length, 13-3/4 in Overall Width, 77 sq-in, 40 deg Deflection, 1/2 in Blade Spacing, Steel, Bright White Enamel, Domestic