Skip to content
52

16x25x3 furnace filter

Worth a look

Shows low returns (0.5%), but brand-locked demand (top 5 brands take 99% of clicks) keeps it on the watch list.

Market size 31Growth 51Conversion 91Competition 36Returns 98Price range 95Avg price 90Brand share 3Review moat 46Quality gap 37

Returns

Incredible0.5%

return rate — above 5% kills the launch gate

Price range

Incredible$34.21–$73.29

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

Conversion

Great11.0%

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

Avg price

Great$58.77

avg listing price — sweet spot $15–$100

Growth

Good+21.9%

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

Review moat

Okay1,930

avg incumbent reviews — the moat a new listing must climb

Quality gap

Okay4.5★

avg incumbent rating — lower means beatable quality

Competition

Okay64%

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

Market size

Okay$145K

$145K/yr · 22K searches

Brand share

Bad99%

top-5 brand share — brand-locked demand

According to Flapen's Amazon United States niche tracking, 16x25x3 furnace filter is a $145K/yr Amazon United States market (22K searches/yr). The top 5 brands hold 99% of demand. Demand peaks in Jul. Verdict: Worth a look — 52/100.

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

16x25x3 furnace filter market data

Units sold / yr
3K–3K
avg 100–250/product
Revenue / yr
$147K–$176K
units × avg price
Conversion rate
11.0%
Avg BSR
#978
Page quality
0%
Prime
21%
Sponsored
100%
Out of stock
0.0%
Avg brand age
82 months
Avg seller age
202 days

Competition & brand share

The top 5 products take 64% of clicks — established leaders, but buyers still shop beyond them.

Brands

6 flat

Sellers

20

Top-5 brand share

99%

Top 20: 100%

Top-5 click share

64%

Top 20: 100%

Open market

0%

  • AIRx Filters50%
  • Filterbuy26%
  • Trion11%
  • Aerostar7%
  • BestAir4%
  • filvita1%
  • Open — no brand owns it (0%)

Demand & seasonality

Weekly Amazon search volume, last 104 weeks — +21.9% search growth over the last 90 days.
700500Spike '24Spike '25Prime Day '25Spike '26Prime Day '26SepDecMarJunAugNovMarMay

Peak months: Jul · busiest ÷ quietest = 1.8×

Top 16x25x3 furnace filter search terms

  • 16x25x3 furnace filter11K/yr
  • 16x25x3 air filter4K/yr
  • 16x25x33K/yr
  • furnace filters 16x25x33K/yr
All search terms

Top 16x25x3 furnace 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%$14K20%$29K30%$43K40%$58K1101001K10K100K Reviews — right = deep review moat Market share (90d) ≈ est. sales
Beatable (≤4.3★) Contested Strong incumbent (>4.7★)

All 19 tracked products in this niche — three views at once, no toggling.

What buyers say about 16x25x3 furnace filter

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

What buyers love

Filtration32%

“Great quality filter”

Quality-Overall28%

“The product seems well made”

Value For Money12%

“Nice price for the package”

Size-Overall8%

“Perfect fit”

Efficiency6%

“Works”

Advertised Vs Actual Product3%

“Exactly what I needed”

Strength2%

“are sturdy enough to slide in”

Leak-Proof2%

“no leaks around the filter due to foam seals around filter”

What buyers complain about

Size-Overall35%

“Wont fit”

Filtration19%

“One of the filters was damaged”

Allergies13%

“Grate filters for allergies”

Height10%

“the exterior height dimension should be just a bit shorter”

Value For Money6%

“Expensive”

Thickness6%

“Just thin plastic around the bare filters”

Top return reasons

Size-Overall63%
Filtration18%
Compatibility-Overall6%
Functionality-Overall3%
Defective Material/Parts2%
Assembly/Installation2%
Material Quality1%
Thickness1%
Quality-Overall1%
Value For Money1%

Common questions

Is 16x25x3 furnace filter profitable to sell on Amazon United States?
The niche generates $145K/yr across 19 tracked products. 0 of 1 products launched in the last 360 days are still selling. 90-day search growth is +21.9%. Flapen's verdict: Worth a look (52/100).
How competitive is the 16x25x3 furnace filter niche?
6 brands and 20 sellers compete. The top 5 products take 64% of clicks and top 5 brands hold 99% of demand.
What do buyers complain about in 16x25x3 furnace filter?
Top complaints mined from reviews: Size-Overall, Filtration, Allergies. The return rate is 0.5%.
When does demand for 16x25x3 furnace filter peak?
Demand peaks in Jul; the busiest month runs 1.8× the quietest.
What does it cost to enter the 16x25x3 furnace filter niche?
Listings span $34.21–$73.29; the average listing price is $58.77 (sweet spot $15–$100). The average incumbent carries 1,930 reviews — the moat a new listing must climb.