Original Honeywell Factory Replacement Filter MERV 10 (More efficient than the previous MERV 8).
16" x 20" x 4 3/8" (Actual Size: 15 7/8" x 19 5/8" x 4 3/8")
Replaces: 203720, FC35A1027
Fits Models: F25, F35, F100, F150, FC100F1004
Original Honeywell Factory Replacement Filter MERV 10 (More efficient than the previous MERV 8).
16" x 20" x 4 3/8" (Actual Size: 15 7/8" x 19 5/8" x 4 3/8")
Replaces: 203720, FC35A1027
Fits Models: F25, F35, F100, F150, FC100F1004