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Submersible Filter

a small market ($51K/yr) — Submersible Filter doesn't clear our bar today.

Flapen Score

46
Skip it

Ranks 2,652 of 3,978 Pet Supplies niches · −5 vs the category median of 51

Market size 13Growth 22Conversion 73Competition 48Returns 38Price range 84Avg price 95Brand share 40Review moat 41Quality gap 76
This niche Category average · 3,978 niches

Is Submersible Filter profitable on Amazon?

According to Flapen's Amazon United States niche tracking, Submersible Filter is a $51K/yr Amazon United States market (30K searches/yr). The top 5 brands hold 81% of demand. Verdict: Skip it — 46/100.

Submersible Filter: the Amazon niche in one read

Everything a seller checks before entering, in three answers.

Is the demand real?

Not really. Search demand moved -6.6% over the last 90 days and 6.7% of searches end in a purchase.

$51K

revenue / yr

Units sold / yr3K
Search volume / yr-6.6%30K
Conversion rate6.7%
Avg price$25.70

Who owns the niche?

The top 5 brands hold 81% of demand, so 19% of the market is open.

19%

open market share

Brands · sellers14 · 33
Top-5 product click share56%
Open market19%
Avg brand age52 months

Is there a way in?

Listing quality. The average product page scores 0/100 on content standards. Incumbents average 4.3★ — the gap to enter on.

0/100

page quality · 23 products

Sponsored placement70%
New entrants (1y)7· 2 succeeded
Avg rating4.3★
Avg reviews2,351

Top Submersible Filter 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 56% of clicks — established leaders, but buyers still shop beyond them.

$0$5K$10K$15K$21K1101001K10K100K Review Count Sales
Beatable (≤4.3★) Contested Strong incumbent (>4.7★)

Brands

14 rising

Sellers

33

Top-5 brand share

81%

Top 20: 100%

Top-5 click share

56%

Top 20: 98%

Open market

16%

  • Fluval59%
  • beaufan6%
  • TARARIUM6%
  • NICREW5%
  • AquaMiracle5%
  • Tetra4%
  • Open — no brand owns it (8 brands, 16%)

Submersible Filter demand & seasonality

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

Volume30KCVR6.7%Products23Brands14Top 5 Brands81%OOS Rate0.0%Rating4.3★Reviews2,351Avg BSR#391
700500Black Friday '24Prime Day '25Black Friday '25Spike '26SepDecMarJunAugNovMarMay

No pronounced peak months · busiest ÷ quietest = 1.2×

Top Submersible Filter search terms shoppers use

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

  • submersible filter5K/yr
  • submersible water filter4K/yr
  • fluval u45K/yr
  • fluval u35K/yr
  • fluval u3 filter replacement5K/yr
  • underwater filter2K/yr
  • fluval underwater filter2K/yr
  • fluval u3 filter2K/yr

What reviews say buyers love and hate about Submersible Filter

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

What buyers love

81% of reviews
Filtration32%

The filter works great

Value For Money9%

Great Price

Quality-Overall8%

Of very good quality

Ease Of Cleaning7%

easy to clean

Advertised Vs Actual Product6%

Was working just as advertised

What buyers complain about

76% of reviews
Durability25%

Breaks quickly

Filtration16%

Poor filtering

Quality-Overall6%

Build quality is very poor

Functionality-Overall6%

it does not run for long

Size-Overall6%

Big

Submersible Filter return rate & reasons

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

3.9%

Return rate

49%

Fixable by listing

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

1Size-Overall
42%
2Filtration
27%
3Functionality-Overall
7%
4Advertised Vs Actual Product
4%
5Defective Material/Parts
3%

Common Submersible Filter questions

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

Flapen scores Submersible Filter 46/100 on Amazon United States — Skip it. The niche generates $51K/yr across 23 tracked products. 2 of 7 products launched in the last 360 days are still selling. Search demand moved -6.6% over the last 90 days.
Search demand for Submersible Filter on Amazon United States is steady year-round — the busiest month runs 1.2× the quietest.