Honeywell Replacement Media FC100A1029- 16x25 (5-pack) Honeywell factory original, OEM FC100A1029 Pleated Filter, 16 Static Pressure Drop (in w.c.): 0.24 Used with Honeywell 16x25 F100 and F200 Media Air Cleaners Nominal filter size: 16 5 pack of Honeywell factory original OEM filters