Opening Size Rough Opening Fit Sizes 4.5x13 (3) 4.5x13.5 (3) 4.5x14 (3) 4.5x14.5 (3) 5x13 (3) 5x13.5 (3) 5x14 (3) 5x14.5 (3) 6x13 (3) 6x13.5 (3) 6x14 (3) 6x14.5 (3) 6x16 Replacement (3)
