2 x 11.75 (duct opening size) Edison Pattern - Black Finish - No Screw Holes - With Lip - With Adjustable Louver - With Beveled Edge (RR100-15(17-50) = $135
3.75 x 9.375 (duct opening size) Edison Pattern - Black Finish - No Screw Holes - With Lip - With Adjustable Louver - With Beveled Edge (RR120-17(17-50) = $155