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20x20x1 MERV 13: what to buy

Printed size 20x20x1, MERV 13 only — actual about 19.75 × 19.75 × 0.75 (varies by brand). Pick a pack below.

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Our pickNordic Pure pleated (official via Awin)MERV 13 · Pack of 24$233.99$9.75 per filterLowest verified price per filter (MERV 13): $9.75 each, checked 28 OctBuy at Nordic Pure

Match & price

Full answer

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).

Full answer

Pack prices on this page re-checked 27 Sep 2026 where Buy URLs were opened (Honeywell Store and JB Tools match; Amazon cards re-checked 7 Oct 2026 (US buy-box, ZIP 10001)).

Why MERV 13?

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

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. Amazon Filtrete MPR 1900 4-pack B005GZ8IG2 and 6-pack B07FNWCLR4: $73.04 (28 Oct; $71.29 before) and $84.99 respectively (re-checked 28 Oct 2026 on two reads; the 4-pack sold by Amazon.com, the 6-pack a featured offer from Westley Trading LLC, ships from Amazon, only 4 left; the 6-pack was $83.25 from Amazon.com on 27 Oct and $79.81 from BEUSA on 24–26 Oct). Honeywell Store and JB Tools rows were re-checked 2 Oct 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.

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 factory cart pack prices for the MERV 13 24-pack rows below were verified 15 Sep 2026 and re-checked 18 Oct 2026 on nordicpure.com (one-time purchase price; same dollars; select MERV and pack on the factory page). Amazon Filtrete B005GZ8IG2 is $73.04 (28 Oct; $71.29 before) (re-checked 25 Oct 2026); Walmart Filtrete remains unverified. Full 20x20x1 pack table, including MERV 8 and 11: 20x20x1.

Filtrete MPR is not MERV — see MPR vs MERV.

When not to buy MERV 13 in 1-inch

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 (all stores)

Where to buy

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

Sources (accessed 1 Sep 2026 unless noted)

  • Amazon US buy-box re-read 21 Oct 2026 (~8:54–9:06pm and again ~9:08–9:10pm ET; headless Chrome on our persistent checker profile, en-US, ZIP 10001; no bot check). Main price = regular price anyone pays; a ($X Prime) bracket is shown only where Amazon labelled an exclusive Prime price that night. B005GZ8IG2 $73.04 (28 Oct; $71.29 before) (sold by Amazon.com, same on both reads 25 Oct, ~9:10 and ~9:23pm ET; $69.46 on 24 Oct, $69.50 on 23 Oct, $73.59 on 21–22 Oct, $73.61 on 19–20 Oct, $70.82 on 18 Oct); B07FNWCLR4 $84.99 ($14.17 per filter; featured offer from Westley Trading LLC, ships from Amazon, on both reads 28 Oct, ~9:08 and ~9:20pm ET; it was $83.25 sold by Amazon.com on 27 Oct; it was $79.81 from BEUSA, only 6 left, on both reads 24 Oct, ~9:08 and ~9:17pm ET; it was $83.25 shipped and sold by Amazon.com on 21–23 Oct (re-reads ~10:20 and ~10:27pm ET on 21 Oct); it was $80.00 from BEUSA at ~9pm the same evening and $83.96 from Amazon.com on 14 Oct).
  • 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 27 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 and 6-pack B07FNWCLR4 — $73.04 (28 Oct; $71.29 before) and $84.99 respectively (re-checked 28 Oct 2026); titles print 19.62 × 19.62 × 0.78 and dimensions fields also print 19.69 × 19.69 × 0.78
  • Nordic Pure factory 20x20x1 MERV 13 24-pack $233.99 ($9.75/filter) verified 15 Sep 2026 and re-checked 18 Oct 2026 on nordicpure.com (one-time purchase). Actual ~19.5 × 19.5 × 0.75 from listing copy on the size page
  • Parent size page actuals and 30 Aug 2026 pack table: 20x20x1. 2-inch version: 20x20x2 MERV 13. Walmart Filtrete prices skipped (bot wall). Did not scrape Filterbuy charts.