Skip to content
61

20x20x1 air filter

Launch it

A $14.4M/yr market growing +28.6% this quarter with returns at 0.8% — clears our launch bar.

Market size 100Growth 55Conversion 96Competition 27Returns 96Price range 95Avg price 95Brand share 21Review moat 12Quality gap 19

Market size

Incredible$14.4M

$14.4M/yr · 2.9M searches

Conversion

Incredible14.2%

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

Returns

Incredible0.8%

return rate — above 5% kills the launch gate

Avg price

Incredible$35.48

avg listing price — sweet spot $15–$100

Price range

Incredible$22.43–$54.52

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

Growth

Good+28.6%

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

Competition

Okay69%

top-5 click share — leaders hold, buyers still browse

Brand share

Bad91%

top-5 brand share — brand-locked demand

Quality gap

Bad4.7★

avg incumbent rating — lower means beatable quality

Review moat

Bad27,637.06

avg incumbent reviews — the moat a new listing must climb

According to Flapen's Amazon United States niche tracking, 20x20x1 air filter is a $14.4M/yr Amazon United States market (2.9M searches/yr). The top 5 brands hold 91% of demand. Demand peaks in Jul. Verdict: Launch it — 61/100.

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

20x20x1 air filter market data

Units sold / yr
400K–500K
avg 15,000–20,000/product
Revenue / yr
$14.2M–$17.7M
units × avg price
Conversion rate
14.2%
Avg BSR
#14
Page quality
0%
Prime
88%
Sponsored
94%
Out of stock
0.0%
Avg brand age
55 months
Avg seller age
158 days

Competition & brand share

The top 5 products take 69% of clicks — established leaders, but buyers still shop beyond them.

Brands

8 falling

Sellers

39

Top-5 brand share

91%

Top 20: 100%

Top-5 click share

69%

Top 20: 100%

Open market

4%

  • Amazon Basics28%
  • Filtrete23%
  • Simply17%
  • Filterbuy13%
  • Aerostar10%
  • BNX4%
  • Open — no brand owns it (2 brands, 4%)

Demand & seasonality

Weekly Amazon search volume, last 104 weeks — +28.6% search growth over the last 90 days.
90K70KSpike '25Prime Day '25Spike '26SepDecMarJunAugNovMarMay

Peak months: Jul · busiest ÷ quietest = 1.8×

Top 20x20x1 air filter search terms

  • 20x20x1 air filter1.3M/yr
  • air filter 20x20x1456K/yr
  • ac filter 20x20x1154K/yr
  • air filters 20x20x1116K/yr
  • 20 x 20 x 1 air filters for home110K/yr
  • furnace filters 20x20x1117K/yr
  • 20x20x1 air filter 6 pack70K/yr
  • filtrete 20x20x183K/yr
  • filters 20x20x1104K/yr
  • 20x20x155K/yr
All search terms

Top 20x20x1 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%$1.4M20%$2.9M30%$4.3M40%$5.8M1001K10K100K1.0M Reviews — right = deep review moat Market share (90d) ≈ est. sales
Beatable (≤4.3★) Contested Strong incumbent (>4.7★)

All 17 tracked products in this niche — three views at once, no toggling.

What buyers say about 20x20x1 air filter

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

What buyers love

Filtration26%

“Excellent Filters”

Value For Money21%

“Decent price”

Quality-Overall17%

“Excellent product”

Size-Overall13%

“Fit great”

Advertised Vs Actual Product6%

“As advertised”

Efficiency3%

“Effective”

Assembly/Installation2%

“Easy installation”

Strength2%

“Fairly sturdy two sided support”

Ease Of Use1%

“Easy to use”

Durability1%

“Seriously though, durable”

What buyers complain about

Filtration20%

“Terrible filtration”

Quality-Overall14%

“Overpriced for the Quality”

Size-Overall13%

“Returning wrong size”

Strength8%

“Not sturdy”

Value For Money7%

“seem a bit pricey”

Noise Level3%

“They are loud”

Durability3%

“After 2 days, the filter frame folded and got pulled up out of position”

Thickness3%

“Filter is too thick”

Advertised Vs Actual Product3%

“Not as described”

Assembly/Installation2%

“I went through two trying to install them”

Top return reasons

Size-Overall77%
Filtration12%
Compatibility-Overall4%
Value For Money2%
Advertised Vs Actual Product1%
Defective Material/Parts1%
Quality-Overall1%
Functionality-Overall1%
Certifications0%
Material Quality0%

Common questions

Is 20x20x1 air filter profitable to sell on Amazon United States?
The niche generates $14.4M/yr across 17 tracked products. 1 of 1 products launched in the last 360 days are still selling. 90-day search growth is +28.6%. Flapen's verdict: Launch it (61/100).
How competitive is the 20x20x1 air filter niche?
8 brands and 39 sellers compete. The top 5 products take 69% of clicks and top 5 brands hold 91% of demand.
What do buyers complain about in 20x20x1 air filter?
Top complaints mined from reviews: Filtration, Quality-Overall, Size-Overall. The return rate is 0.8%.
When does demand for 20x20x1 air filter peak?
Demand peaks in Jul; the busiest month runs 1.8× the quietest.
What does it cost to enter the 20x20x1 air filter niche?
Listings span $22.43–$54.52; the average listing price is $35.48 (sweet spot $15–$100). The average incumbent carries 27,637 reviews — the moat a new listing must climb.