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20x20x1 MERV 13: what to buy
Printed size is 20x20x1. This page is only the MERV 13 slice of that size — Honeywell Ultra, Filtrete packs that print MERV 13, and Nordic Pure MERV 13. Fit still depends on actual cut and thickness. Measure and compare brands on the parent 20x20x1 size page (full actual-size table and pack-price table).
What MERV 13 means here
MERV is ASHRAE 52.2, as summarized by EPA. MERV 13 is the band EPA cites as ≥50% capture of 0.30–1.0 µm, ≥85% of 1.0–3.0 µm, and ≥90% of 3.0–10.0 µm. A 1-inch MERV 13 is not HEPA. We do not claim health outcomes. Higher MERV adds resistance: a 1-inch MERV 13 typically drops more pressure than MERV 8 or 11 in the same slot. EPA’s upgrade language is to pick at least MERV 13, or as high a rating as your system fan and filter slot can accommodate, and to ask an HVAC technician if you are unsure. Full 8 vs 11 vs 13 table: MERV guide.
MERV 13 20x20x1 options
Actual sizes are copied from manufacturer or merchant product copy already on the 20x20x1 page. Prices below are public shelf/cart snapshots. Honeywell Store and JB Tools rows were re-checked 1 Sep 2026 (same dollars as 30 Aug 2026). Per-filter math is pack price ÷ count, rounded to the cent. They are not live. Shipping, subscribe-and-save, and store-only deals will move them.
| Brand | Printed MERV / MPR | Published actual (in.) | Pack | Price that day | Per filter | Merchant |
|---|---|---|---|---|---|---|
| Honeywell Ultra Efficiency | MERV 13 | 19.75 × 19.75 × 0.75 | 4 | $60.95 | $15.24 | Honeywell Store |
| Honeywell Ultra Efficiency | MERV 13 | 19.75 × 19.75 × 0.75 | 12 | $170.95 | $14.25 | Honeywell Store |
| Filtrete (3M) | MERV 13 / MPR 1900 | Amazon title: 19.62 × 19.62 × 0.78; dimensions field also 19.69 × 19.69 × 0.78 | 4 | Not verified 1 Sep 2026 | — | Amazon B005GZ8IG2 |
| Filtrete (3M) | MERV 13 / MPR 1900 | Amazon title: 19.62 × 19.62 × 0.78; dimensions field also 19.69 × 19.69 × 0.78 | 6 | Not verified 1 Sep 2026 | — | Amazon B07FNWCLR4 |
| Filtrete (3M) | MERV 13 / MPR 2200 | Typical Filtrete 1-inch on the size page: 19.62 × 19.62 × 0.78; some SKUs 19.69 × 19.69 × 0.78 | — | Not verified 1 Sep 2026 | — | 3M MPR 2200 family (prints MERV 13; no 20x20x1 cart price on fetch) |
| Nordic Pure pleated (reseller) | MERV 13 | Approximately 19.5 × 19.5 × 0.75 (19½ × 19½ × ¾) | 24 | $210.59 | $8.77 | JB Tools |
3M prints MERV 13 on both MPR 1900 and MPR 2200 family pages. MPR is 3M’s scale, not MERV; compare MERV to MERV. Nordic Pure’s factory page does not show a price until MERV and pack are selected; the JB Tools figure is a reseller snapshot, not Nordic Pure’s factory cart. Amazon Filtrete and Walmart Filtrete pages were bot-blocked 1 Sep 2026 (no price used). Target Filtrete 1-pack and 2-pack did not return a public price on fetch. Lowe’s Filtrete 1900 page was access-denied (no price used). Full 20x20x1 pack table, including MERV 8 and 11: 20x20x1.
When not to buy MERV 13 in 1-inch
- The furnace or air-handler manual calls for a lower MERV (or a named brand/grade below 13). Follow the equipment, not a search query.
- An HVAC technician says the fan cannot take the extra pressure drop of a 1-inch MERV 13.
- The slot is a 4-inch (or 5-inch) media cabinet. A 1-inch MERV 13 is not a 4-inch media cartridge. See 20x20x4 if that is the printed size.
If you are unsure, ask an HVAC technician. EPA’s wording is at least MERV 13 or as high as the fan and slot can accommodate — not “always MERV 13 in every 1-inch rack.”
Where to buy
We may earn a commission if you buy through links on this page. It does not change the price you pay.
- Honeywell Ultra 20x20x1 Current 1-inch Ultra Efficiency MERV 13, actual 19.75 × 19.75 × 0.75. 4-pack · 12-pack.
- Filtrete MERV 13 20x20x1 3M prints MERV 13 on MPR 1900 and MPR 2200. Amazon MPR 1900: 4-pack B005GZ8IG2 · 6-pack B07FNWCLR4. Target 1-pack listing (no price on fetch): A-14784656. Target 2-pack listing (no price on fetch): A-90627814. 3M family pages: MPR 1900 · MPR 2200.
- Nordic Pure / JB Tools MERV 13 20x20x1 Factory page (pick MERV 13 and pack): nordicpure.com/product/20x20x1-air-filter-2/. Reseller 24-pack: JB Tools 20x20x1M13-24. Published actual on the JB Tools listing is approximately 19.5 × 19.5 × 0.75 (19½ × 19½ × ¾).
- Amazon / Target search Amazon: 20x20x1 MERV 13 · Target: 20x20x1 MERV 13.
Need MERV 8 or 11, or the full brand actual-size table? Go back to 20x20x1. MERV 8 vs 11 vs 13 EPA table: MERV.
No ranking. Stock and price change. A 1-inch MERV 13 is not a 4-inch media cabinet and is not HEPA.
Sources (accessed 1 Sep 2026 unless noted)
- EPA MERV table: epa.gov/indoor-air-quality-iaq/what-merv-rating (updated 14 Jan 2026)
- Honeywell Store Ultra Efficiency 20x20x1 4-pack $60.95 and 12-pack $170.95, actual 19.75 × 19.75 × 0.75 (re-checked 1 Sep 2026; same as 30 Aug 2026 size-page snapshot)
- 3M Filtrete MPR 1900 and MPR 2200 family pages print MERV 13: filtrete.com/3M/en_US/p/d/b00039899/ and /b00040201/ (family pages timed out on this fetch; MERV 13 print confirmed on 16x25x1 MERV 13 page 31 Aug 2026 and on 3M MPR 2200 search copy 1 Sep 2026)
- Amazon Filtrete 20x20x1 MPR 1900 4-pack B005GZ8IG2 (titles print 19.62 × 19.62 × 0.78; dimensions field also 19.69 × 19.69 × 0.78) and 6-pack B07FNWCLR4 — product pages bot-blocked 1 Sep 2026; no price used
- Nordic Pure factory 20x20x1 (pick MERV 13): nordicpure.com/product/20x20x1-air-filter-2/ (no numeric actual or price until options selected). JB Tools 24-pack 20x20x1M13-24 $210.59 (re-checked 1 Sep 2026; same as 30 Aug 2026). Actual ~19.5 × 19.5 × 0.75 from JB Tools listing copy on the size page
- Parent size page actuals and 30 Aug 2026 pack table: 20x20x1. Walmart Filtrete prices skipped (bot wall). Target Filtrete 1-pack A-14784656 and 2-pack A-90627814: no public price on fetch. Lowe’s Filtrete 1900: access-denied. Did not scrape Filterbuy charts.