FilterBySize Furnace and AC filter sizes, actual dimensions, MERV

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16x20x1 air filter: actual size, MERV, and price

Printed size 16x20x1 — actual about 15.75 × 19.75 × 0.75 (varies by brand). Pick a pack below.

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Our pickHoneywell 16x20x1 Standard EfficiencyMERV 8 · Pack of 12$71.95$6.00 per filterLowest verified price per filter (MERV 8–11): $6.00 each, checked 17 OctBuy at Honeywell Store

Match & price

Full answer

A 16x20x1 is a one-inch-class rectangle furnace or AC filter. Buy the printed size 16x20x1. The panel is smaller than 16 by 20 inches — commonly 15.75 × 19.75 × 0.75, with Filtrete closer to 15.68 × 19.68 × 0.81 or 15.69 × 19.69 × 0.78 and Nordic Pure about 15.5 × 19.5 × 0.75.

Full answer

Same panel, swapped axes: 20x16x1. We treat 16x20x1 as the canonical label. Order 16x20x1.

Actual dimensions by brand

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.

Brand Nominal Published actual (in.) Source
Honeywell 1-inch Standard/High/Ultra Efficiency (MERV 8, 11, and 13) 16x20x1 15.75 × 19.75 × 0.75 Honeywell Store product specs
Amazon Basics 16x20x1 MERV 8 6-pack 16x20x1 15.75 × 19.75 × 0.75 Amazon product title B088BZTYFP
Amazon Basics MERV 5 16x20x1 6-pack 16x20x1 15.75 × 19.75 × 0.75 Amazon product title “Actual Size: 15.75" × 19.75" × 0.75"”
Filtrete 16x20x1 MPR 2200 / MERV 13 16x20x1 15.69 × 19.69 × 0.78 Amazon B07FNXPL2S and B013WIDEOK “exact dimensions”
Filtrete 16x20x1 MPR 1000 / MERV 11 16x20x1 15.68 × 19.68 × 0.81 Amazon B00002N6J9 title “Actual Size 15.68 × 19.68 × 0.81 in”
Filtrete 16x20x1 MPR 1900 / MERV 13 (some listings) 16x20x1 15.62 × 19.62 × 0.78 Amazon 2-pack titles — different figure than the MPR 2200 SKU; measure if the slot is tight
Nordic Pure 16x20x1 pleated 16x20x1 Approximately 15.5 × 19.5 × 0.75 (15½ × 19½ × ¾) JB Tools listing for Nordic Pure 16x20x1M13-24

If you currently run Nordic Pure (~15.5 × 19.5) and switch to Honeywell (15.75 × 19.75), expect a snugger slide-in. Filtrete’s published actuals also disagree with each other by SKU. Measure the old filter if the slot is tight. Full method: how to measure.

MERV 8 vs 11 vs 13 (EPA facts)

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 16x20x1 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

Shopping only MERV 13 in this size? See the dedicated 16x20x1 MERV 13 hub (Honeywell Ultra, Filtrete MPR 1900/2200, Nordic Pure).

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.

Where these prices came from

Pack prices re-checked 27 Sep 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.

Observed range that day for ordinary pleated 16x20x1: about $6.00–$6.74/filter at MERV 8 in multi-packs, $7–$13 at MERV 11, $8–$15 at MERV 13, with singles costing more than multi-packs. Nordic Pure Buy buttons go through Awin to the true 1-inch pleated PDP (/product/16x20x1-air-filter-2/ — the old /product/16x20x1-air-filter/ URL is a 0.5″ ring panel). Factory cart pack prices for listed MERV 8 12-pack and MERV 13 24-pack were verified 15 Sep 2026 and re-checked 12 Oct 2026 on nordicpure.com (one-time purchase price; same dollars) (pick MERV and pack on the factory page). Walmart Filtrete product pages returned a bot check, so those pack prices are omitted rather than guessed.

Where to buy (all stores)

Where to buy

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 16x20x1 SKU.

Sources

Sources (accessed 30 Aug 2026)

  • EPA MERV table: epa.gov/indoor-air-quality-iaq/what-merv-rating (updated 14 Jan 2026)
  • Honeywell Store 16x20x1 MERV 8/11/13 pack pages (prices and 15.75×19.75×0.75)
  • Amazon Basics B088BZTYFP actual size field; Filtrete Amazon B07FNXPL2S, B013WIDEOK, B00002N6J9, and MPR 1900 titles
  • JB Tools Nordic Pure 16x20x1M8-12 ($79.19) and 16x20x1M13-24 (15.5×19.5×0.75, $197.99)