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Top Fin Filter Cartridges

brand-locked demand (top 5 brands take 95% of clicks) — Top Fin Filter Cartridges doesn't clear our bar today.

Flapen Score

44
Skip it

Ranks 2,946 of 3,978 Pet Supplies niches · −7 vs the category median of 51

Market size 43Growth 16Conversion 72Competition 66Returns 48Price range 71Avg price 76Brand share 12Review moat 35Quality gap 32
This niche Category average · 3,978 niches

Is Top Fin Filter Cartridges profitable on Amazon?

According to Flapen's Amazon United States niche tracking, Top Fin Filter Cartridges is a $226K/yr Amazon United States market (226K searches/yr). The top 5 brands hold 95% of demand. Demand peaks in Jan. Verdict: Skip it — 44/100.

Top Fin Filter Cartridges: the Amazon niche in one read

Everything a seller checks before entering, in three answers.

Is the demand real?

Not really. Search demand moved -17.0% over the last 90 days and 6.6% of searches end in a purchase.

$226K

revenue / yr

Units sold / yr20K
Search volume / yr-17.0%226K
Conversion rate6.6%
Avg price$15.20

Who owns the niche?

The top 5 brands hold 95% of demand, so 5% of the market is open.

5%

open market share

Brands · sellers9 · 179
Top-5 product click share45%
Open market5%
Avg brand age58 months

Is there a way in?

Listing quality. The average product page scores 0/100 on content standards. Incumbents average 4.6★ — the gap to enter on.

0/100

page quality · 31 products

Sponsored placement84%
New entrants (1y)0· 0 succeeded
Avg rating4.6★
Avg reviews3,005

Top Top Fin Filter Cartridges products & what they sell for

Every tracked product — its share of the shelf, its review moat, and what it sells for.

Competition: brands, sellers & click share

The top 5 products take 45% of clicks — established leaders, but buyers still shop beyond them.

$0$9K$18K$27K$36K1001K10K100K Review Count Sales
Beatable (≤4.3★) Contested Strong incumbent (>4.7★)

Brands

9 rising

Sellers

179

Top-5 brand share

95%

Top 20: 100%

Top-5 click share

45%

Top 20: 91%

Open market

3%

  • Top Fin34%
  • Zuqqony28%
  • HiTauing24%
  • Tetra7%
  • driamor2%
  • lasuroa2%
  • Open — no brand owns it (3 brands, 3%)

Top Fin Filter Cartridges demand & seasonality

Weekly search volume, with the niche's key stats alongside.

Volume226KCVR6.6%Products31Brands9Top 5 Brands95%OOS Rate0.3%Rating4.6★Reviews3,005Avg BSR#106
6K4KSpike '25Spike '26SepDecMarJunAugNovMarMay

Peak months: Jan · busiest ÷ quietest = 1.7×

Top Top Fin Filter Cartridges search terms shoppers use

The exact queries shoppers type, with yearly volume, growth and conversion.

  • top fin filter cartridges75K/yr
  • topfin aquarium filter46K/yr
  • top fin filter36K/yr
  • top fin37K/yr
  • top fin aquarium filter9K/yr
  • topfin6K/yr
  • topfin filter5K/yr
  • top fin filters5K/yr
  • top fin fish tank filter5K/yr
  • top fin small filter cartridge2K/yr

What reviews say buyers love and hate about Top Fin Filter Cartridges

What buyers mention most, as a share of all reviews.

What buyers love

88% of reviews
Filtration26%

Filters work well

Value For Money18%

Good for the price

Quality-Overall12%

The quality has been consistent

Size-Overall11%

sizing is accurate

Advertised Vs Actual Product7%

As advertised

What buyers complain about

76% of reviews
Durability21%

Breaks easily

Filtration19%

filtration is weak

Quality-Overall9%

Bad quality control

Size-Overall7%

It doesnt fit the fitter

Water Flow5%

It agitates the water way too much

Top Fin Filter Cartridges return rate & reasons

Why buyers send it back, as a share of all return requests.

3.2%

Return rate

72%

Fixable by listing

The "fixable" share counts expectation-mismatch reasons — size, look, advertised-vs-actual — that better copy and images address.

1Size-Overall
69%
2Filtration
15%
3Compatibility-Overall
3%
4Advertised Vs Actual Product
3%
5Functionality-Overall
3%

Common Top Fin Filter Cartridges questions

The questions sellers ask about this niche, answered from the tracked metrics.

Flapen scores Top Fin Filter Cartridges 44/100 on Amazon United States — Skip it. The niche generates $226K/yr across 31 tracked products. Search demand moved -17.0% over the last 90 days.
Search demand for Top Fin Filter Cartridges on Amazon United States peaks in Jan, where the busiest month runs 1.7× the quietest.