Size page
16x25x1 air filter: actual size, MERV, and price
A 16x25x1 is a one-inch-class furnace or AC filter. Buy the printed size 16x25x1. The panel you hold is smaller than that label — usually about 15.75 × 24.75 × 0.75 inches, depending on the brand.
Same filter, swapped axes: 25x16x1. Order 16x25x1.
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 |
|---|---|---|---|
| Amazon Basics | 16x25x1 | 15.75 × 24.75 × 0.75 | Amazon listing B088BX9LPC, “ITEM ACTUAL DIMENSION” |
| Honeywell (current 1-inch High/Ultra Efficiency MERV 11 and 13) | 16x25x1 | 15.75 × 24.75 × 0.75 | Honeywell Store product specs |
| Honeywell CF108A1625/A Standard MERV 8 | 16x25x1 | 15.50 × 24.50 × 0.90 | Honeywell Store (this SKU is discontinued) |
| Filtrete (typical 1-inch packs) | 16x25x1 | 15.69 × 24.69 × 0.81; some SKUs 0.78 thick | Filtrete Amazon / Home Depot Canada “exact dimensions” |
| Nordic Pure | 16x25x1 | 15½ × 24½ × ¾ (15.5 × 24.5 × 0.75) | Nordic Pure Amazon product copy |
| AirFilters.com Accumulair Platinum | 16x25x1 | 15.75 × 24.75 | Product title lists both numbers |
| AirFilters.com Arm & Hammer Max Allergen MERV 11 4-pack | 16x25x1 | 15¾ × 24¾ × ¾ | airfilters.com measurements field |
If you currently run Nordic Pure (15.5 × 24.5) and switch to Filtrete (15.69 × 24.69 × ~0.81), 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 16x25x1 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. Home Depot’s FPR is a third scale. 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 |
|---|---|---|---|---|---|
| HDX 16×25×1 Standard Pleated (FPR 5) | 8 | 12 | $42.00 | $3.50 | Home Depot |
| HDX 16×25×1 Standard Pleated single | 8 | 1 | $5.98 | $5.98 | Home Depot |
| Honeywell 16x25x1 Standard Efficiency | 8 | 4 | $27.95 | $6.99 | Honeywell Store |
| Honeywell 16x25x1 Standard Efficiency | 8 | 12 | $74.95 | $6.25 | Honeywell Store |
| Amazon Basics 16x25x1 electrostatic | 11 | 6 | $41.36 | $6.89 | Amazon |
| Honeywell 16x25x1 High Efficiency | 11 | 4 | $32.95 | $8.24 | Honeywell Store |
| Honeywell 16x25x1 High Efficiency | 11 | 12 | $93.95 | $7.83 | Honeywell Store |
| Filtrete 16x25x1 MPR 1000 Allergen Defense | 11 | 1 | $13.88 | $13.88 | Walmart |
| Filtrete 16x25x1 MPR 1000 | 11 | 2 | $22.72 | $11.36 | Walmart |
| Filtrete 16x25x1 MPR 1000 | 11 | 4 | $43.98 | $11.00 | Walmart |
| Filtrete 16x25x1 MPR 1000 | 11 | 6 | $62.99 | $10.50 | Walmart |
| Arm & Hammer Max Allergen (carbon) 16x25x1 | 11 | 4 | $75.84 | $18.96 | AirFilters.com |
| Filterbuy 16x25x1 pleated (Target) | 13 | 6 | $49.98 | $8.33 | Target |
| Honeywell 16x25x1 Ultra Efficiency | 13 | 4 | $60.95 | $15.24 | Honeywell Store |
| Honeywell 16x25x1 Ultra Efficiency | 13 | 12 | $170.95 | $14.25 | Honeywell Store |
| Nordic Pure 16x25x1 pleated (reseller) | 8 | 24 | $169.19 | $7.05 | JB Tools |
| Nordic Pure 16x25x1 pleated (reseller) | 13 | 24 | $210.59 | $8.77 | JB Tools |
Observed range that day, ordinary pleated 16x25x1 (excluding the carbon Arm & Hammer SKU): about $3.50–$7/filter at MERV 8, $7–$11 at MERV 11, $8–$15 at MERV 13, with singles costing more than multi-packs. Nordic Pure’s own site did not show a price until MERV and pack were selected; the JB Tools figures are a reseller snapshot, not Nordic Pure’s factory cart.
Where to buy
We may earn a commission if you buy through links on this page. It does not change the price you pay.
- AirFilters.com Accumulair and other 16x25x1 SKUs, including custom cuts. Example listing: 16x25x1 Accumulair Platinum MERV 11 (15.75×24.75).
- Nordic Pure Factory page for this size (pick MERV and pack): nordicpure.com/product/16x25x1-air-filter/. Published actual size on their Amazon-branded packs is 15½ × 24½ × ¾.
- Honeywell Store Current 1-inch 16x25x1, actual 15.75 × 24.75 × 0.75. Example: MERV 11 12-pack.
- Amazon Search and a known Basics SKU: 16x25x1 furnace filter · Amazon Basics MERV 11 6-pack.
- Home Depot Category for this size (pickup): 16x25x1 air filters.
- Walmart Filtrete 16x25x1 MPR 1000 / MERV 11 packs: Filtrete 4-pack listing (other pack counts on the same product family).
- Target Filterbuy-branded 16x25x1 MERV 13 6-pack (actual size on that listing: 15.50 × 24.50 × 0.75): Target A-1007566630.
No ranking. Stock and price change. If the slot is an odd fraction that none of these actual sizes match, AirFilters.com and Nordic Pure both sell custom cuts — that is a measuring job, not a 16x25x1 SKU.
Sources (accessed 30 Aug 2026)
- EPA MERV table: epa.gov/indoor-air-quality-iaq/what-merv-rating (updated 14 Jan 2026)
- Amazon Basics B088BX9LPC; Filtrete Amazon titles listing 15.69×24.69×0.81; Nordic Pure Amazon B0D1VTZH9R / B0D1VW3MCB
- Honeywell Store MERV 8/11/13 16x25x1 pack pages (prices and 15.75×24.75×0.75)
- Walmart Filtrete MPR 1000 pack prices; Home Depot HDX 16×25×1 MERV 8 12-pack $42.00 and single $5.98
- AirFilters.com Accumulair and Arm & Hammer 4-pack $75.84; Target Filterbuy 6-pack $49.98; JB Tools Nordic Pure 24-packs