BestAir HW1625-11R Furnace Filter, 16" x 25" x 4", Honeywell Replacement, MERV 11 MERV 11 Removes 95% of particles up to 10 microns: Dust/Lint, Pollen, Dust Mite Debris, Pet Dander, Mold Spores, Bacteria, Most Smoke, Virus Carriers Fits: Honeywell 16 x 25 x 4; Honeywell Air Cleaner Models: F100B1016, F100F1012, F100F1038, F100F2002, F100F2010, F200E1029 Replaces Honeywell: CF100A1009, CF100A1041, CF200A1008, FC100A1029, FC200E1029, POPUP1625, CF100A1041, 203719, F35/35R Also Replaces Honeywell: FC35A1001, F100/150 FC100A1026/1029, F200 FC200E1029, 203719 Easy to install and Lasts up to 12 months and proudly Made in the USA