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55

15x20x1 air filter

Worth a look

Shows low returns (0.8%), but brand-locked demand (top 5 brands take 95% of clicks) keeps it on the watch list.

Market size 64Growth 55Conversion 94Competition 23Returns 96Price range 85Avg price 95Brand share 13Review moat 20Quality gap 30

Returns

Incredible0.8%

return rate — above 5% kills the launch gate

Avg price

Incredible$39.59

avg listing price — sweet spot $15–$100

Conversion

Great11.7%

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

Price range

Great$7.98–$65.46

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

Market size

Good$601K

$601K/yr · 130K searches

Growth

Good+27.5%

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

Quality gap

Okay4.6★

avg incumbent rating — lower means beatable quality

Competition

Bad72%

top-5 click share — a locked-up shelf

Review moat

Bad12,917.89

avg incumbent reviews — the moat a new listing must climb

Brand share

Bad95%

top-5 brand share — brand-locked demand

According to Flapen's Amazon United States niche tracking, 15x20x1 air filter is a $601K/yr Amazon United States market (130K searches/yr). The top 5 brands hold 95% of demand. Demand peaks in Jun–Jul. Verdict: Worth a look — 55/100.

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

15x20x1 air filter market data

Units sold / yr
15K–20K
avg 750–1,000/product
Revenue / yr
$594K–$792K
units × avg price
Conversion rate
11.7%
Avg BSR
#140
Page quality
0%
Prime
56%
Sponsored
72%
Out of stock
0.0%
Avg brand age
58 months
Avg seller age
174 days

Competition & brand share

The top 5 products capture 72% of clicks — a locked-up shelf that new listings rarely crack.

Brands

9 falling

Sellers

23

Top-5 brand share

95%

Top 20: 100%

Top-5 click share

72%

Top 20: 100%

Open market

4%

  • Filtrete25%
  • Filterbuy24%
  • Simply23%
  • True Blue22%
  • BestAir2%
  • Filter King2%
  • Open — no brand owns it (3 brands, 4%)

Demand & seasonality

Weekly Amazon search volume, last 104 weeks — +27.5% search growth over the last 90 days.
5K4KSpike '24Spike '25Prime Day '25Spike '26Prime Day '26SepDecMarJunAugNovMarMay

Peak months: Jun, Jul · busiest ÷ quietest = 1.8×

Top 15x20x1 air filter search terms

  • 15x20x1 air filter60K/yr
  • air filter 15x20x117K/yr
  • 15x20x1 furnace filter14K/yr
  • 15 x 20 x 1 air filter9K/yr
  • furnace filters 15x20x18K/yr
  • ac filter 15x20x15K/yr
  • 15x20x13K/yr
  • 20x15x1 air filter4K/yr
  • furnace filter 15x20x14K/yr
  • filter 15x20x13K/yr
All search terms

Top 15x20x1 air filter 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%10%$60K20%$120K30%$180K40%$240K1101001K10K100K Reviews — right = deep review moat Market share (90d) ≈ est. sales
Beatable (≤4.3★) Contested Strong incumbent (>4.7★)

All 18 tracked products in this niche — three views at once, no toggling.

What buyers say about 15x20x1 air filter

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

What buyers love

Filtration33%

“Good quality filter”

Size-Overall20%

“Fit fine”

Value For Money17%

“Value for money”

Quality-Overall13%

“Quality and reasonable price”

Advertised Vs Actual Product3%

“As described”

Ease Of Use2%

“Easy to buy from Amazon”

Color2%

“color is very nice”

Assembly/Installation2%

“Easy to install”

Thickness2%

“Really a great value thickness”

Efficiency1%

“Seem to work well”

What buyers complain about

Size-Overall33%

“Did not fit my ac unit”

Filtration26%

“Poor fitting filter”

Maintenance And Repair11%

“it needs to be replaced more often than every month”

Compatibility-Overall6%

“Did not fit my ac unit”

Thin6%

“Thin material”

Top return reasons

Size-Overall76%
Filtration9%
Advertised Vs Actual Product5%
Compatibility-Overall5%
Value For Money1%
Certifications1%
Defective Material/Parts1%
Ease Of Use0%
Quality-Overall0%
Thickness0%

Common questions

Is 15x20x1 air filter profitable to sell on Amazon United States?
The niche generates $601K/yr across 18 tracked products. 0 of 2 products launched in the last 360 days are still selling. 90-day search growth is +27.5%. Flapen's verdict: Worth a look (55/100).
How competitive is the 15x20x1 air filter niche?
9 brands and 23 sellers compete. The top 5 products take 72% of clicks and top 5 brands hold 95% of demand.
What do buyers complain about in 15x20x1 air filter?
Top complaints mined from reviews: Size-Overall, Filtration, Maintenance And Repair. The return rate is 0.8%.
When does demand for 15x20x1 air filter peak?
Demand peaks in Jun–Jul; the busiest month runs 1.8× the quietest.
What does it cost to enter the 15x20x1 air filter niche?
Listings span $7.98–$65.46; the average listing price is $39.59 (sweet spot $15–$100). The average incumbent carries 12,918 reviews — the moat a new listing must climb.