Honeywell Home · media air cleaner · media air cleaner cabinet

Honeywell Home F100 20 x 25 (F100F2025/U) replacement filter

Use part FC100A1037. Replace every 6 to 12 months, depending on use.

The filter that fits

Maker lists this model

Honeywell Home FC100A1037 MERV 11

20 in x 25 in MERV 11 Replacement Media Filter

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

Opens an Amazon search for Honeywell Home FC100A1037 MERV 11. Check the listing says FC100A1037.

Honeywell Home labels several versions of the F100 20 x 25 (F100F2025/U). Check the label on your unit.

F100 20 x 25 (F100F2025/U) takes FC100A1037
F100F2010/U same filter · older 20 x 25 cabinet, discontinued
F100F2044/U same filter · Same 20 x 25 media, rotated cabinet · 25 x 20
F100F2051/U same filter · 25 x 22 cabinet; Honeywell lists the same FC100A1037

Variants and kits the maker sells for this model. Same fit, different media or packaging.

20 in x 25 in MERV 13 charged-media filter
FC200E1037 · Find on Amazon
POPUP2025 (listed by Resideo as a replacement filter for F100F2010/U; name not shown)
POPUP2025 · Find on Amazon

These fits are claimed by the seller, not by Honeywell Home. We list them for completeness and label them.

Filterbuy Honeywell 20x25x5 MERV 11 Replacement Filter Retailer claim
Actual 19.88 x 24.75 x 4.38 in; page names no Honeywell part or cabinet model; dimension match only
Seller's page

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
F100 sizes: 16x20 F100F1620/U, 16x25 F100F1625/U, 20x20 F100F2020/U, 20x25 F100F2025/U, 25x20 F100F2044/U, 25x22 F100F2051/U; filters 16x20 FC100A1003, 16x25 FC100A1029, 20x20 FC100A1011, '20 x 25 & 25 x 20 & 25 x 22: FC100A1037'
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'
Model variants customer.resideo.com Maker's own page checked Oct 1, 2026
F100F2010/U 'Media Air Cleaner, 20 x 25, 4 inch, MERV 11'; 'This product is no longer available for purchase'; replacement filters FC100A1037, FC200E1037, POPUP2025
What's in it resideo.com Maker's own page checked Oct 1, 2026
FC100A1037/U MERV 11; fits Honeywell Home air cleaners 'F25, F27, F35, F100, F150, F200'

Show all 6 sources

honeywellhome.com Maker's own page checked Oct 1, 2026
F100 sizes: 16x20 F100F1620/U, 16x25 F100F1625/U, 20x20 F100F2020/U, 20x25 F100F2025/U, 25x20 F100F2044/U, 25x22 F100F2051/U; filters 16x20 FC100A1003, 16x25 FC100A1029, 20x20 FC100A1011, '20 x 25 & 25 x 20 & 25 x 22: FC100A1037'
honeywellhome.com Maker's own page checked Oct 1, 2026
F100F2025/U 20 in. x 25 in. Media Air Cleaner; Specifications: Compatible Filter FC100A1037 MERV 11, Product Length 25 in; Product Height 20 in; F100F2044/U (25 in. x 20 in.) and F100F2051/U (25 in. x 22 in.) also list Compatible Filter FC100A1037 MERV 11; 'F100F2010/U 20 in. x 25 in. Media Air Cleaner — Discontinued'
resideo.com Maker's own page checked Oct 1, 2026
'20 in x 25 in MERV 11 Replacement Media Filter' SKU: FC100A1037/U; 'works with Honeywell Home Whole House Electronic Air Cleaners F25, F27, F35, F100, F150 and F200'

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

customer.resideo.com Maker's own page checked Oct 1, 2026
F100F2010/U 'Media Air Cleaner, 20 x 25, 4 inch, MERV 11'; 'This product is no longer available for purchase'; replacement filters FC100A1037, FC200E1037, POPUP2025

resideo.com Maker's own page checked Oct 1, 2026
FC100A1037/U MERV 11; fits Honeywell Home air cleaners 'F25, F27, F35, F100, F150, F200'