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Honeywell FC100A1037: F100/F200 20x25x4 media filter
Honeywell FC100A1037 is the common MERV 11 OEM cartridge for Honeywell F100 / F200 (and related) 20×25 media cabinets. Published exact size is about 19⅞ × 24⅞ × 4⅜ (19.875 × 24.875 × 4.375 / ~19.88 × 24.88 × 4.38). It is not a drop-in for AprilAire 210/213 (actual 20.6 × 26.63 × 4). Related Honeywell Home packs in the same cabinet depth: CF100A1025 (MERV 8) and CF200A1016 (MERV 12). Broader brand tables: 20x25x4 size page.
Quick specs
| Field | Value |
|---|---|
| Model | Honeywell FC100A1037 (OEM media) |
| Printed MERV | MERV 11 |
| Nominal | 20 × 25 × 4 |
| Published exact / actual | 19⅞ × 24⅞ × 4⅜ (19.875 × 24.875 × 4.375) |
| Cabinets | Honeywell F100, F150, F200, F25, F35, F50, F300 (media path) |
| Typical change interval | 6–12 months (manufacturer band; load shortens it) |
Source: Air Quality Honeywell Store product specs for FC100A1037 (“Exact Dimensions: 19 7/8 × 24 7/8 × 4 3/8”), accessed 9 Sep 2026. Other merchant copy often prints ~19.94 × 24.86–24.88 × 4.38.
Related Honeywell Home packs (same ~4.38 depth)
| SKU | Printed MERV | Published actual (in.) | Note |
|---|---|---|---|
| FC100A1037 | 11 | 19.875 × 24.875 × 4.375 | OEM F100/F200 cartridge this page covers |
| CF100A1025 | 8 | ~19.94 × 24.87 × 4.38 | Honeywell Home 3-pack class; Amazon B098ZNWHSK title dims |
| CF200A1016 | 12 | ~19.9 × 24.9 × 4.38 | Honeywell Home 3-pack class; Amazon B098ZP4MNV title dims. A discontinued Honeywell Store listing for the same model number printed 19.38 × 24.38 × 4.37 — measure if the cabinet is tight |
Pack dollars for CF100 / CF200 live on the 20x25x4 money page (last full brand recheck 30 Aug 2026). This model page keeps a short OEM-focused Buy table only.
Not AprilAire — and not every “20x25x4”
- Honeywell FC100A1037 — ~19.88 × 24.88 × 4.38 for Honeywell F100/F200-class cabinets.
- AprilAire 210 / 213 — official actual 20.6 × 26.63 × 4. Different face and depth. Compare: AprilAire 210 vs 213.
- Nordic Pure “20x25x4” — often ~19.5 × 24.5 × 3.63. Shallower than 4⅜. Nordic Pure tells Honeywell 4⅜ owners to use their 20x25x5 Honeywell replacement (~19.63 × 24.88 × 4.38) instead.
Some merchants also file the same ~4.38 Honeywell cartridge under a 20x25x5 label. Match the old cartridge’s printed model or tape-measure depth — do not assume every 20x25x5 is FC100A1037. Size hubs: 20x25x4 · 20x25x5.
Sister Honeywell cabinet sizes
Same F100/F200 media family, different face. Open the size page for brand actuals and dated Buy tables.
- 20x25x4 — FC100A1037-class (this page’s size).
- 16x25x4 — FC100A1029-class.
- 20x20x4 — FC100A1011-class.
- 16x20x4 — FC100A1003-class.
- 16x25x5 / 20x25x5 — labels that sometimes sell the same ~4.38 depth as Honeywell replacements; measure before you order.
MERV 11 in context
MERV is ASHRAE 52.2, as summarized by EPA. FC100A1037 is labeled MERV 11. Higher MERV captures more of the smaller particle bands and adds resistance. A media MERV 11 is not HEPA. We do not claim health outcomes. Full 8 vs 11 vs 13 guide: MERV. Change interval by thickness: how often.
OEM pack prices verified 9 Sep 2026
Public featured prices on Air Quality Honeywell Store product pages tonight. Per-filter math is pack price ÷ count. Shipping will move cart totals. Prefer the verified 2-pack row when comparing multi-packs. Broader Filtrete / BestAir / Nordic Pure tables stay on /sizes/20x25x4/ rather than being copied here stale.
We may earn a commission if you buy through links on this page. It does not change the price you pay.
| Listing | MERV | Pack | Price that day | Per filter | Merchant |
|---|---|---|---|---|---|
| Honeywell FC100A1037 OEM | 11 | 2 | $115.00 | $57.50 | Air Quality Honeywell Store |
| Honeywell FC100A1037 OEM | 11 | 1 | $67.50 | $67.50 | Air Quality Honeywell Store |
| Honeywell FC100A1037 OEM | 11 | 4 | $200.00 | $50.00 | Air Quality Honeywell Store |
| Genuine Honeywell FC100A1037 (Amazon) | 11 | 1 | $34.00 | $34.00 | Amazon B003J7JSFY |
Verified tonight via live product pages: AQHS 2-pack featured $115.00 (product:price amount 115); 1-pack featured $67.50; 4-pack featured $200.00. Amazon genuine FC100A1037 1-pack B003J7JSFY featured NEW buy-box $34.00 (headed Chrome, 9 Sep 2026 ET). Do not scrape Filterbuy charts. Prefer Target over Walmart when both exist on size pages.
Where to buy
- Air Quality Honeywell Store (OEM) FC100A1037 2-pack (verified $115.00 tonight): 2-pack. Also 1-pack and 4-pack.
- Amazon Genuine FC100A1037 1-pack (verified $34.00): Amazon B003J7JSFY. Search: Honeywell FC100A1037. Related same-depth Honeywell Home packs (prices not re-verified on this page): CF100A1025 MERV 8.
- Need AprilAire instead? Different actual — start at AprilAire 210 vs 213.
- Full 20x25x4 brand table Filtrete / BestAir / Nordic Pure rows: /sizes/20x25x4/.
No ranking. Stock and price change. Match the model number on the old filter or the cabinet door. A 20x25x1 is not a substitute.
Sources (accessed 9 Sep 2026 unless noted)
- Air Quality Honeywell Store FC100A1037 1-pack: fc100a1037-20x25-air-filter — featured $67.50; exact 19 7/8 × 24 7/8 × 4 3/8; MERV 11; F100/F150/F200/F25/F35/F50/F300
- Air Quality Honeywell Store FC100A1037 2-pack: fc100a1037-20x25-air-filter-2-pack — featured $115.00 (product:price amount 115)
- Air Quality Honeywell Store FC100A1037 4-pack: fc100a1037-20x25-air-filter-4-pack — featured $200.00
- Related CF100A1025 / CF200A1016 actuals and older pack table: /sizes/20x25x4/ (30 Aug 2026 size-page check)
- AprilAire contrast: /models/aprilaire-210-213/
- EPA MERV table: epa.gov/indoor-air-quality-iaq/what-merv-rating (updated 14 Jan 2026)
- Amazon Honeywell FC100A1037 1-pack B003J7JSFY: amazon.com/dp/B003J7JSFY — featured NEW buy-box $34.00 (headed Chrome, 9 Sep 2026 ET)