2 x 7.5 (duct opening size) 3 x 10 (overall size) Imperial Pattern - White Finish - 1/8" steel - No screw holes - no lip - with beveled edge (RR60) = $66 each
2 x 11 (duct opening size) 3 x 15 (overall size) Imperial Pattern - Black Finish - 3/16" steel - No screw holes - With lip - with beveled edge (RR78-12) = $87 each
