20x25x1 Air Filter Market Report: Sales Volume, Market Share, Leading Brands & Market Trends
20x25x1 Air Filter sales on Amazon US totaled 133,300 units in July 2026 (▲ 0.5% vs. the prior month), generating an estimated $4,748,177 in revenue across the 50 top-ranked ASINs for this search term. Demand is heavily concentrated at the top of the ranking — the ten best performers capture 66.0% of unit volume and 58.0% of revenue, while a typical listing is priced at $45.15. The keyword itself pulled 85,769 Amazon queries over the same period (▲ 4.5% MoM).
Zooming out to the 12-month window ending July 2026, the 20x25x1 air filter Top 50 moved 1,238,900 units and $46,976,915 in cumulative sales — an average of 103,242 units and $3,914,743 per month. Monthly throughput topped out at 133,300 units in July 2026 and dipped to 59,550 in May 2026, leaving the latest reading 41.8% higher than August 2025.
20x25x1 Air Filter Sales Trend (Trailing 12 Months)
Based on the top 50 ASINs by monthly sales for this keyword
2025/08
2025/09
2025/10
2025/11
2025/12
2026/01
2026/02
2026/03
2026/04
2026/05
2026/06
2026/07
Monthly Sales 2026/07
133.3K
▲ 0.5% MoM
Monthly Revenue 2026/07
$4.7M
▼ 1.2% MoM
Top 10 Market Share 2026/07
66.0%
20x25x1 Air Filter Market Share & Sales Concentration on Amazon US — July 2026
The most-sold 20x25x1 air filter listing on Amazon US in July 2026 is ASIN B004Q69HIU (Brand: Filtrete), which sold 10,000 units at $21.99 apiece — equal to 7.5% of every unit tracked in this report.
The Top 10 ASINs account for 88,000 units and $2,754,610 in July 2026 — 66.0% of unit volume and 58.0% of revenue among all 50 ranked ASINs in this report.
Sales Volume of Top ASINs for '20x25x1 Air Filter' on Amazon
July 2026
Is 66.0% Top 10 share highly concentrated?
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Top 5 Volume Share breakdown
B004Q69HIU
Filtrete 20x25x1 Air Filter, MERV 11, MPR 1000, Allergens & Pet Dander, 3-Month AC and Furnace Filters, Cleaner Air, Reliable Airflow, 2 HVAC Filters (Actual Size 19.68 x 24.68 x 0.81 in)
10K
▲ 0.0%vs. prior month
$220.2K
latest month
12-month trend
B004Q6D02E
Filtrete 16x25x1 Air Filter, MERV 11, MPR 1000, Allergens & Pet Dander, 3-Month AC and Furnace Filters, Cleaner Air, Reliable Airflow, 2 HVAC Filters (Actual Size 15.68 x 24.68 x 0.81 in)
10K
▲ 11.1%vs. prior month
$219.9K
latest month
12-month trend
B00CJZ8PGU
Filterbuy 20x25x1 Air Filter MERV 8 Dust & Allergy Defense (4-Pack) | Electrostatic Pleated HVAC AC Furnace Filters Replacement, Made in USA (Actual Size: 19.50 x 24.50 x 0.75)
10K
▲ 42.9%vs. prior month
$373.5K
latest month
12-month trend
B07FNXPGLG
Filtrete 20x25x1 Air Filter MERV 5, 6-Pack AC Furnace HVAC Filters for Home, MPR 300 Basic Dust Defense, Pleated Electrostatic Removes Lint & Dust (Actual Size 19.69x24.69x0.81 in)
10K
▲ 11.1%vs. prior month
$340.5K
latest month
12-month trend
B088BZ3BDX
Amazon Basics 20x25x1 Air Filter 6-Pack, MERV 8 AC Furnace Filters, Removes Dust, Electrostatic, Allergen Control (Actual Size: 19.75" x 24.75" x 0.75")
10K
▲ 0.0%vs. prior month
$314.5K
latest month
12-month trend
B01CSWPVME
Aerostar Air Filter 20x20x1 MERV 8 AC Filter, HVAC, Furnace Filter, 6 Pack | ACTUAL SIZE (19.75 x 19.75 x 0.75) AC Filter, HVAC, Furnace Filter Captures Dust, Lint & Pollen MERV 8 (MPR 600)
10K
▲ 0.0%vs. prior month
$311.9K
latest month
12-month trend
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Best 20x25x1 Air Filter Brands on Amazon US — Top 3 Brand Sales Concentration (July 2026)
Filtrete is the best-performing 20x25x1 air filter brand in July 2026, moving 46,000 units across 5 ASINs for 52.3% of Top 10 volume. Aerostar follows with 15,000 units (17.0%), ahead of Filterbuy on 10,000 units (11.4%).
With 5 brands splitting the Top 10 and 80.7% of volume sitting with three of them, this is a concentrated shelf — the leaders hold multiple listings or one very high-velocity ASIN, so a new entrant competes against established review moats rather than an open field. Average selling prices among the leaders run from $28.78 to $37.96, which frames the price band a competing listing has to justify.
Brand share of Top 10 volume
Filtrete
5 ASINs in Top 10
52.3%
Units
46K
Revenue
$1.3M
Avg. price
$28.78
B004Q69HIU
$21.99·★4.8·58.1K revsFiltrete 20x25x1 Air Filter, MERV 11, MPR 1000, Allergens & Pet Dander, 3-Month AC and Furnace Filters, Cleaner Air, Reliable Airflow, 2 HVAC Filters (Actual Size 19.68 x 24.68 x 0.81 in)
Units sold10KB004Q6D02E
$21.99·★4.8·58.1K revsFiltrete 16x25x1 Air Filter, MERV 11, MPR 1000, Allergens & Pet Dander, 3-Month AC and Furnace Filters, Cleaner Air, Reliable Airflow, 2 HVAC Filters (Actual Size 15.68 x 24.68 x 0.81 in)
Units sold10KB07FNXPGLG
$27.96·★4.8·25.9K revsFiltrete 20x25x1 Air Filter MERV 5, 6-Pack AC Furnace HVAC Filters for Home, MPR 300 Basic Dust Defense, Pleated Electrostatic Removes Lint & Dust (Actual Size 19.69x24.69x0.81 in)
Units sold10KB004QOPKVK
$21.99·★4.8·58.1K revsFiltrete 16x20x1 Air Filter, MERV 11, MPR 1000, Allergens & Pet Dander, 3-Month AC and Furnace Filters, Cleaner Air, Reliable Airflow, 2 HVAC Filters (Actual Size 15.68 x 19.68 x 0.81 in)
Units sold8KB0BVXDDZH7
$49.99·★4.6·2.3K revsFiltrete 20x25x5 Air Filter MERV 11, MPR 1000 Micro Allergen Defense 2-Pack, Fits Lennox, AC Furnace HVAC Filters for Home, Pleated Electrostatic (Actual Size 19.63 x 24.75 x 4.31 in)
Units sold8K
Aerostar
2 ASINs in Top 10
17.0%
Units
15K
Revenue
$475.9K
Avg. price
$33.92
B01CSWPVME
$31.89·★4.7·12.1K revsAerostar Air Filter 20x20x1 MERV 8 AC Filter, HVAC, Furnace Filter, 6 Pack | ACTUAL SIZE (19.75 x 19.75 x 0.75) AC Filter, HVAC, Furnace Filter Captures Dust, Lint & Pollen MERV 8 (MPR 600)
Units sold10KB01CSWPPQQ
$35.95·★4.7·9.4K revsAerostar Air Filter 16x25x1 MERV 8 AC Filter, HVAC, Furnace Filter, 6 Pack | ACTUAL SIZE (15.75 x 24.75 x 0.75) AC Filter, HVAC, Furnace Filter Captures Dust, Lint & Pollen MERV 8
Units sold5K
Filterbuy
1 ASIN in Top 10
11.4%
Units
10K
Revenue
$373.5K
Avg. price
$37.96
B00CJZ8PGU
$37.96·★4.7·10.3K revsFilterbuy 20x25x1 Air Filter MERV 8 Dust & Allergy Defense (4-Pack) | Electrostatic Pleated HVAC AC Furnace Filters Replacement, Made in USA (Actual Size: 19.50 x 24.50 x 0.75)
Units sold10K
Trending 20x25x1 Air Filter Products — Growth Leaders & New Top 10 Entrants
Based on July 2026 data, this shortlist surfaces the two kinds of ASIN worth keeping an eye on — the ones that just broke into the Top 10, and the ones growing fastest month over month. On the growth side, B07YYJTSF3 leads positive momentum with ▲ 300.0% MoM growth on 400 units, with B00CK027SG close behind at ▲ 100.0% MoM on 2K units.
The two signals carry different weight. A fresh entrant means share has already changed hands — an incumbent gave up its place to make room, so any competitive set drawn up a month ago is now out of date. A steep growth rate works as the earlier warning: it marks demand that is still compounding, usually a month or two before the ranking catches up to it.
B07YYJTSF3
Aerostar Air Filter 20x25x1 MERV 8 AC Filter, HVAC, Furnace Filter, 4 Pack | ACTUAL SIZE (19.75 x 24.75 x 0.75) AC Filter, HVAC, Furnace Filter Captures Dust, Lint & Pollen MERV 8 (MPR 600)
Price
$32.96
Rating
4.6
Reviews
4K
Latest month sales
B00CK027SG
Filterbuy 20x25x1 Air Filter MERV 8 Dust & Allergy Defense (6-Pack) | Electrostatic Pleated HVAC AC Furnace Filters Replacement, Made in USA (Actual Size: 19.50 x 24.50 x 0.75)
Price
$44.98
Rating
4.8
Reviews
2.2K
Latest month sales
B09XGDZQNG
BNX TruFilter 20x25x1 Air Filter MERV 13 AC Filter, HVAC Furnace Filter, 6 Pack (ACTUAL SIZE 19.68"x24.68"x0.75") Allergies, Dust, Pet Dander & Smoke - MADE IN USA - MPR1500 / FPR 10
Unlock to view ASIN details and product titles
Price
$59.49
Rating
4.7
Reviews
8K
Latest month sales
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