Size page
20x22x1 air filter: actual size, MERV, and price
A 20x22x1 is a less common one-inch-class furnace or AC filter. Buy the printed size 20x22x1. The panel is smaller than 20 by 22 inches — Filtrete listings print 19.81 × 21.81 × 0.81; Nordic Pure about 19.5 × 21.44 × 0.75 (19½ × 21 7/16 × ¾).
Same panel, swapped axes: 22x20x1. We treat 20x22x1 as the canonical label. Order 20x22x1. Do not substitute 20x20x1 or 20x25x1 — those are different slots.
Actual size by brand
These numbers are copied from manufacturer or merchant product copy, not from a competitor size chart. Thickness is part of the fit: 1-inch racks take ~¾ inch media. Honeywell Store and Amazon Basics do not list a 20x22x1 SKU, so they are omitted here rather than guessed.
| Brand | Nominal | Published actual (in.) | Source |
|---|---|---|---|
| Filtrete 20x22x1 MPR 1000 / MERV 11 | 20x22x1 | 19.81 × 21.81 × 0.81 | Amazon titles B0FST28KLD (2-pack), B0DLQ5Q9Y6 (4-pack), and B07CSZ9H2M (6-pack) “Actual Size 19.81 x 21.81 x 0.81 in”; product-dimensions fields list 21.81 × 19.81 × 0.81 |
| Filtrete 20x22x1 MPR 700 / MERV 8 | 20x22x1 | 19.81 × 21.81 × 0.81 | Amazon B0F9LR74Y5 title “Actual Size 19.81 x 21.81 x 0.81 in”; product-dimensions field lists 21.81 × 19.81 × 0.81 |
| Nordic Pure 20x22x1 pleated | 20x22x1 | Approximately 19.5 × 21.44 × 0.75 (19½ × 21 7/16 × ¾) | JB Tools listings for Nordic Pure 20x22x1M8-4, 20x22x1M8-12, 20x22x1M13-4, and 20x22x1M13-12; Amazon B0D1W245LJ title and bullet “Actual Size: 19 1/2 x 21 7/16 x 3/4 (19.5 x 21.44 x 0.75)” |
If you currently run Nordic Pure (~19.5 × 21.44) and switch to Filtrete (19.81 × 21.81), expect a snugger slide-in. Measure the old filter if the slot is tight. Full method: how to measure.
MERV 8 vs 11 vs 13 (facts only)
MERV is ASHRAE 52.2, as summarized by EPA. Higher MERV captures a larger share of smaller particles. It also adds resistance. EPA says 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. A 1-inch MERV 13 is not HEPA. We do not claim health outcomes.
| MERV | EPA average capture efficiency (particle size) | Typical 20x22x1 use |
|---|---|---|
| 8 | ≥20% of 1.0–3.0 µm; ≥70% of 3.0–10.0 µm | Common pleated replacement when the manual does not call for higher |
| 11 | ≥20% of 0.30–1.0 µm; ≥65% of 1.0–3.0 µm; ≥85% of 3.0–10.0 µm | Mid-grade 1-inch pleat (Filtrete MPR 1000 is commonly labeled MERV 11) |
| 13 | ≥50% of 0.30–1.0 µm; ≥85% of 1.0–3.0 µm; ≥90% of 3.0–10.0 µm | Higher-efficiency 1-inch; confirm the furnace/air handler can take the extra pressure drop |
Source: U.S. EPA, “What is a MERV rating?”, last updated 14 Jan 2026. Filtrete also prints an MPR number; MPR is 3M’s scale, not MERV. Compare MERV to MERV.
Pack prices checked 30 Aug 2026
These are public shelf/cart prices we recorded on 30 Aug 2026. They are not live. Shipping, subscribe-and-save, and store-only deals will move them. Per-filter math is pack price ÷ count, rounded to the cent.
| Listing | MERV | Pack | Price that day | Per filter | Merchant |
|---|---|---|---|---|---|
| Nordic Pure 20x22x1 pleated (reseller) | 8 | 4 | $49.94 | $12.49 | JB Tools |
| Nordic Pure 20x22x1 pleated (reseller) | 8 | 12 | $112.49 | $9.37 | JB Tools |
| Nordic Pure 20x22x1 pleated (reseller) | 13 | 4 | $58.94 | $14.74 | JB Tools |
| Nordic Pure 20x22x1 pleated (reseller) | 13 | 12 | $161.99 | $13.50 | JB Tools |
Observed range that day for ordinary pleated 20x22x1: about $9.37–$12.49/filter at MERV 8 in Nordic Pure multi-packs, $13.50–$14.74 at MERV 13. This size is less common than 20x20x1 or 20x25x1. Honeywell Store product URLs for 20x22x1 MERV 8/11/13 4-pack and 12-pack returned 404, so Honeywell is omitted rather than guessed. Target listed a Filtrete 20x22x1 MPR 1000 1-pack (A-15091589) but the product page returned no public cart price (bot check); no Target 2-pack or 6-pack SKU was found, so Filtrete pack prices are omitted rather than guessed. Walmart Filtrete product pages returned a bot check, so those pack prices are omitted rather than guessed. Amazon Basics had no published 20x22x1 actual-size listing. Amazon Filtrete product pages timed out or did not yield a verified public cart price for this check.
Where to buy
We may earn a commission if you buy through links on this page. It does not change the price you pay.
- Walmart Filtrete 20x22x1 MPR 1000 / MERV 11 packs: Filtrete 20x22x1 search (pack counts on the same product family).
- Target Filtrete 20x22x1 MPR 1000 1-pack: Target A-15091589.
- Amazon Search this size: 20x22x1 furnace filter.
- Home Depot Category for this size (pickup): 20x22x1 air filters.
- AirFilters.com Custom and stock 20x22x1 cuts: airfilters.com.
- Nordic Pure Reseller listing with published actual 19.5 × 21.44 × 0.75: JB Tools 20x22x1M8-12.
No ranking. Stock and price change. If the slot is an odd fraction that none of these actual sizes match, measure first — that is not a 20x22x1 SKU. A 20x20x1 or 20x25x1 is not a substitute.
Sources (accessed 30 Aug 2026)
- EPA MERV table: epa.gov/indoor-air-quality-iaq/what-merv-rating (updated 14 Jan 2026)
- Honeywell Store 20x22x1 MERV 8/11/13 4-pack and 12-pack product URLs: 404 (size not listed)
- Target Filtrete MPR 1000 20x22x1 1-pack A-15091589 listed; no public cart price in the fetch; no 2-pack or 6-pack SKU found
- Amazon Filtrete B0FST28KLD, B0DLQ5Q9Y6, B07CSZ9H2M, and B0F9LR74Y5 titles (actual-size fields). No Amazon Basics 20x22x1 actual-size listing found. Amazon Nordic Pure B0D1W245LJ actual-size field
- JB Tools Nordic Pure 20x22x1M8-4 ($49.94), 20x22x1M8-12 ($112.49), 20x22x1M13-4 ($58.94), and 20x22x1M13-12 (19.5×21.44×0.75, $161.99)