4 x 14 (duct opening size) 5 x 15 (overall size) Royal Linear Pattern - Black Finish - no screw holes - with lip - with beveled edge - 1/8" steel (RR88-58) = $98
10 x 11.75 (duct opening size) Royal Linear Pattern - Black Finish - no screw holes - with lip - with beveled edge - 1/8" steel (RR148-68) = $165
1.875 x 26.25 (duct opening size) Royal Linear Pattern - Black Finish - no screw holes - with lip - with beveled edge - 1/8" steel (RR115-08) = $130
1.5 x 26 (duct opening size) Royal Linear Pattern - Black Finish - no screw holes - with lip - with beveled edge - 1/8" steel (RR138-34) = $154
11.375 x 12 (duct opening size) Imperial Pattern - Gray Finish - no screw holes - with lip - with beveled edge - 1/8" steel (RR195-42) = $217
16 x 17 (duct opening size) Imperial Pattern - Gray Finish - no screw holes - with lip - with beveled edge - 1/8" steel (RR313-74) = $347
19.25 x 13.5 (duct opening size) Imperial Pattern - Gray Finish - no screw holes - with lip - with beveled edge - 1/8" steel (RR321-86) = $357