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51

merv 11 air filters 20x25x5

Worth a look

Shows searches that convert (20.6% search→purchase), but a concentrated shelf (top 5 take 86% of clicks) keeps it on the watch list.

Market size 20Growth 92Conversion 100Competition 12Returns 94Price range 76Avg price 83Brand share 14Review moat 35Quality gap 18

Conversion

Incredible20.6%

search→purchase rate — share of searches ending in a sale

Returns

Great1.1%

return rate — above 5% kills the launch gate

Growth

Great+102.8%

90-day search growth — must beat 0% to launch

Avg price

Great$77.33

avg listing price — sweet spot $15–$100

Price range

Great$46.52–$116.86

cheapest to priciest tracked listing — scored on the share inside $15–$100

Review moat

Okay3,030.7

avg incumbent reviews — the moat a new listing must climb

Market size

Bad$79K

$79K/yr · 5K searches

Quality gap

Bad4.7★

avg incumbent rating — lower means beatable quality

Brand share

Bad94%

top-5 brand share — brand-locked demand

Competition

Bad86%

top-5 click share — a locked-up shelf

According to Flapen's Amazon United States niche tracking, merv 11 air filters 20x25x5 is a $79K/yr Amazon United States market (5K searches/yr). The top 5 brands hold 94% of demand. Demand peaks in Oct–Nov. Verdict: Worth a look — 51/100.

Data updated Jul 27, 2026 · scored weekly · How we score niches

merv 11 air filters 20x25x5 market data

Units sold / yr
1K–1K
avg 100–250/product
Revenue / yr
$77K–$97K
units × avg price
Conversion rate
20.6%
Avg BSR
#336
Page quality
0%
Prime
20%
Sponsored
80%
Out of stock
0.0%
Avg brand age
70 months
Avg seller age
209 days

Competition & brand share

The top 5 products capture 86% of clicks — a locked-up shelf that new listings rarely crack.

Brands

7 rising

Sellers

20

Top-5 brand share

94%

Top 20: 100%

Top-5 click share

86%

Top 20: 100%

Open market

3%

  • GeneralAire58%
  • YGACHE21%
  • Filterbuy9%
  • AirPurete3%
  • General Filters3%
  • Minibird3%
  • Open — no brand owns it (1 brand, 3%)

Demand & seasonality

Weekly Amazon search volume, last 102 weeks — +102.8% search growth over the last 90 days.
1K800Spike '24Spike '25Prime Day '25Spike '26DecMarJunAugNovMarMay

Peak months: Oct, Nov · busiest ÷ quietest = 2.8×

Top merv 11 air filters 20x25x5 products on Amazon

Each bubble is one product — market share against review moat; bubble size tracks estimated sales, color grades how beatable the incumbent looks.

0%15%$12K30%$24K45%$36K60%$48K1101001K10K100K Reviews — right = deep review moat Market share (90d) ≈ est. sales
Beatable (≤4.3★) Contested Strong incumbent (>4.7★)

All 10 tracked products in this niche — three views at once, no toggling.

What buyers say about merv 11 air filters 20x25x5

What buyers praise and complain about, mined from review topics.

What buyers love

Quality-Overall25%

“Im sure this filter is just as good as any other”

Filtration19%

“Good filter”

Size-Overall17%

“Fits perfectly”

Value For Money17%

“Money well spent”

Advertised Vs Actual Product8%

“As advertised”

Efficiency3%

“Works well”

Assembly/Installation2%

“Easy install”

Durability1%

“Quality and durability outstanding”

What buyers complain about

Size-Overall55%

“Didn't fit”

Filtration10%

“Not all filters are the same”

Compatibility-Overall6%

“Does not fit Lennox EL296UHV”

Value For Money3%

“just more expensive”

Thickness3%

“a bit too thin”

Quality-Overall3%

“I would expect better quality assurance”

Advertised Vs Actual Product2%

“Shame on me for not reading the spec sheet carefully”

Drainage1%

“Money down the drain”

Functionality-Overall1%

“that did not work out”

Measurement/Reading Accuracy1%

“O. Don't buy this its not a true 20x25x5 clearly they don't haven't measured this”

Top return reasons

Size-Overall72%
Filtration12%
Compatibility-Overall9%
Advertised Vs Actual Product2%
Value For Money2%
Defective Material/Parts1%
Product Condition1%
Functionality-Overall0%
Certifications0%
Measurement/Reading Accuracy0%

Common questions

Is merv 11 air filters 20x25x5 profitable to sell on Amazon United States?
The niche generates $79K/yr across 10 tracked products. 90-day search growth is +102.8%. Flapen's verdict: Worth a look (51/100).
How competitive is the merv 11 air filters 20x25x5 niche?
7 brands and 20 sellers compete. The top 5 products take 86% of clicks and top 5 brands hold 94% of demand.
What do buyers complain about in merv 11 air filters 20x25x5?
Top complaints mined from reviews: Size-Overall, Filtration, Compatibility-Overall. The return rate is 1.1%.
When does demand for merv 11 air filters 20x25x5 peak?
Demand peaks in Oct–Nov; the busiest month runs 2.8× the quietest.
What does it cost to enter the merv 11 air filters 20x25x5 niche?
Listings span $46.52–$116.86; the average listing price is $77.33 (sweet spot $15–$100). The average incumbent carries 3,031 reviews — the moat a new listing must climb.