NEW! SUBSCRIBE AND NEVER FORGET TO ORDER AGAIN QUICK REORDER Honeywell Air Filter Replacements 16x25x1 15 1/2 x 24 1/2 x 3/4 (15.5 x 24.5 x 0.75)Replacement for Model Number/Part NumberCF108A1625/A View Product 16x25x5 15 3/4 x 24 3/4 x 4 3/8 (15.75 x 24.75 x 4.38)Replacement for Model Number/Part Number203719, FC100A1029, FC35A1001 View Product 20x20x5 19 5/8 x 19 7/8 x 4 3/8 (19.63 x 19.88 x 4.38)Replacement for Model Number/Part Number203721, FC100A1011, FC35A1019 View Product 20x25x5 19 7/8 x 24 7/8 x 4 3/8 (19.88 x 24.88 x 4.38)Replacement for Model Number/Part NumberFC100A1037 View Product