Fits checked Oct 1, 2026 · How we check
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Honeywell Home · media air cleaner · media air cleaner cabinet

Honeywell Home F100 20 x 20 (F100F2020/U) replacement filter

Use part FC100A1011. Replace every 6 to 12 months, depending on use.

The filter that fits

Maker lists this model

Honeywell Home FC100A1011 MERV 11

20 in x 20 in MERV 11 Replacement Media Filter

Part number
FC100A1011also sold as FC100A1011/U
How many
1 per unit
How often
Replace every 6 to 12 months, depending on use
Size
20 x 20 nominal, 4 in deep cabinet

Honeywell's page lists one compatible filter per cabinet size but does not say how many the cabinet holds; we list one.

Buy FC100A1011 MERV 11 on AmazonManufacturer page

Opens an Amazon search for Honeywell Home FC100A1011 MERV 11. Check the listing says FC100A1011.

See the sources

Look-alike models that take a different filter

Honeywell issues one F100 model code per cabinet size, and the filter follows the size: 16 x 20 takes FC100A1003, 16 x 25 FC100A1029, 20 x 20 FC100A1011, and 20 x 25 (also 25 x 20 and 25 x 22) FC100A1037. The F200 cabinets take MERV 13 FC200E filters.

Sources

High confidence: the manufacturer names this exact model on a live page. Each line is the page we read and the day we read it.

  • Which filter fits honeywellhome.com Maker's own page checked Oct 1, 2026
    F100F2020/U 20 in. x 20 in. Media Air Cleaner; Specifications: Compatible Filter FC100A1011 MERV 11, Product Length 20 in; Product Height 20 in
  • How often honeywellhome.com Maker's own page checked Oct 1, 2026
    'you only need to replace the filter every 6-12 months, depending on use'
Show all 3 sources

Which filter fits

  1. honeywellhome.com Maker's own page checked Oct 1, 2026
    F100F2020/U 20 in. x 20 in. Media Air Cleaner; Specifications: Compatible Filter FC100A1011 MERV 11, Product Length 20 in; Product Height 20 in
  2. resideo.com Maker's own page checked Oct 1, 2026
    '20 in x 20 in MERV 11 Replacement Media Filter' SKU: FC100A1011/U; 'works with Honeywell Home Whole House Electronic Air Cleaners F25, F27, F35, F100, F150 and F200'

How often

  1. honeywellhome.com Maker's own page checked Oct 1, 2026
    'you only need to replace the filter every 6-12 months, depending on use'