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55

16x20x1 air filter

Worth a look

Shows a $9.9M/yr market, but brand-locked demand (top 5 brands take 100% of clicks) keeps it on the watch list.

Market size 100Growth 45Conversion 97Competition 12Returns 96Price range 95Avg price 95Brand share 0Review moat 5Quality gap 19

Market size

Incredible$9.9M

$9.9M/yr · 1.9M searches

Conversion

Incredible15.7%

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

Returns

Incredible0.8%

return rate — above 5% kills the launch gate

Avg price

Incredible$32.73

avg listing price — sweet spot $15–$100

Price range

Incredible$25.49–$43.12

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

Growth

Okay+16.0%

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

Quality gap

Bad4.7★

avg incumbent rating — lower means beatable quality

Competition

Bad86%

top-5 click share — a locked-up shelf

Review moat

Bad41,464.3

avg incumbent reviews — the moat a new listing must climb

Brand share

Bad100%

top-5 brand share — brand-locked demand

According to Flapen's Amazon United States niche tracking, 16x20x1 air filter is a $9.9M/yr Amazon United States market (1.9M searches/yr). The top 5 brands hold 100% of demand. Demand peaks in Jul. Verdict: Worth a look — 55/100.

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

16x20x1 air filter market data

Units sold / yr
250K–300K
avg 15,000–20,000/product
Revenue / yr
$8.2M–$9.8M
units × avg price
Conversion rate
15.7%
Avg BSR
#8
Page quality
0%
Prime
70%
Sponsored
100%
Out of stock
0.0%
Avg brand age
56 months
Avg seller age
163 days

Competition & brand share

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

Brands

4 falling

Sellers

26

Top-5 brand share

100%

Top 20: 100%

Top-5 click share

86%

Top 20: 100%

Open market

0%

  • Amazon Basics45%
  • Filtrete30%
  • Filterbuy14%
  • Simply12%

Demand & seasonality

Weekly Amazon search volume, last 104 weeks — +16.0% search growth over the last 90 days.
50K30KSpike '24Spike '25Prime Day '25Spike '26Prime Day '26SepDecMarJunAugNovMarMay

Peak months: Jul · busiest ÷ quietest = 1.6×

Top 16x20x1 air filter search terms

  • 16x20x1 air filter781K/yr
  • air filter 16x20x1229K/yr
  • furnace filter 16x20x1181K/yr
  • ac filter 16x20x174K/yr
  • 16x20x1 furnace filter129K/yr
  • 16 x 20 x 1 air filter62K/yr
  • furnace filters 16x20x1101K/yr
  • air filters 16x20x153K/yr
  • filtrete 16x20x152K/yr
  • 16x20x138K/yr
All search terms

Top 16x20x1 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%15%$1.5M30%$3.0M45%$4.5M60%$6.0M1K10K100K1.0M 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 16x20x1 air filter

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

What buyers love

Value For Money22%

“Best value”

Filtration22%

“Great air filters”

Size-Overall15%

“Exact fit”

Quality-Overall14%

“Quality Filters at a Great Price”

Advertised Vs Actual Product7%

“As advertised”

Efficiency4%

“Basic does the job”

Strength3%

“Very sturdy”

Assembly/Installation1%

“Easy to install”

Material Quality1%

“Really good material”

Spray/Flow1%

“Easy to install good air flow”

What buyers complain about

Size-Overall21%

“Too big”

Filtration18%

“Terrible air filter”

Quality-Overall13%

“Poor Quality Control”

Strength10%

“Very flimsy”

Value For Money6%

“Too expensive”

Thickness3%

“know that the filters that are the thickest are not the best for your furnace”

Ease Of Use3%

“A real problem to use”

Durability2%

“Within a couple weeks theyre broken”

Flexibility2%

“Cardboard edges are very very think and bends easy”

Functionality-Overall2%

“It doesnt make the job”

Top return reasons

Size-Overall80%
Filtration9%
Compatibility-Overall4%
Value For Money1%
Advertised Vs Actual Product1%
Quality-Overall1%
Defective Material/Parts1%
Strength0%
Functionality-Overall0%
Certifications0%

Common questions

Is 16x20x1 air filter profitable to sell on Amazon United States?
The niche generates $9.9M/yr across 10 tracked products. 1 of 1 products launched in the last 360 days are still selling. 90-day search growth is +16.0%. Flapen's verdict: Worth a look (55/100).
How competitive is the 16x20x1 air filter niche?
4 brands and 26 sellers compete. The top 5 products take 86% of clicks and top 5 brands hold 100% of demand.
What do buyers complain about in 16x20x1 air filter?
Top complaints mined from reviews: Size-Overall, Filtration, Quality-Overall. The return rate is 0.8%.
When does demand for 16x20x1 air filter peak?
Demand peaks in Jul; the busiest month runs 1.6× the quietest.
What does it cost to enter the 16x20x1 air filter niche?
Listings span $25.49–$43.12; the average listing price is $32.73 (sweet spot $15–$100). The average incumbent carries 41,464 reviews — the moat a new listing must climb.