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
Ranks 2,946 of 3,978 Pet Supplies niches · −7 vs the category median of 51
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
Who owns the niche?
The top 5 brands hold 95% of demand, so 5% of the market is open.
5%
open market share
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
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.
Top sellers
by 90-day click share
Top Fin Silenstream Large PF-L Filter Cartridges Refill
- Price
- $24.32
- Rating
- 4.8/5
- Reviews
- 627
- Age
- 3y ago

Top Fin Silenstream PF-S Refill for PF10 Power Filters 5.5in x 3.1 - (3 Count)
- Price
- $13.93
- Rating
- 4.7/5
- Reviews
- 1,625
- Age
- 5y ago

HiTauing 8 Pack EF-S Filter Cartridges for EF-S Element and BF5 BETTAFLO
- Price
- $8.69
- Rating
- 4.6/5
- Reviews
- 3,205
- Age
- 3y ago

HiTauing 12 Packs PF-S Filter Cartridge for PF10 Power Filters ONLY fit to Model PF10 Power Filters
- Price
- $11.40
- Rating
- 4.6/5
- Reviews
- 2,404
- Age
- 4y ago

15 Pack Filter Cartridges for Filter Replacement Filter Cartridges for Top Fin EF-S Element and BF5 BETTAFLO
- Price
- $13.65
- Rating
- 4.6/5
- Reviews
- 523
- Age
- 2y ago
Trending
90-day click momentum
Top Fin Silenstream PF-S Refill for PF10 Power Filters 5.5in x 3.1 - (3 Count)
- Price
- $13.93
- Rating
- 4.7/5
- Reviews
- 1,625
- Age
- 5y ago

Hedday 8 Packs Filter Cartridge Compatible with Top Fin EF-S Element 8 Packs Aquarium Filter for BF5 BETTAFLO EF-S Filter Cartridges Compatible with Top Fin Fish Tank
- Price
- $10.02
- Rating
- 4.6/5
- Reviews
- 276
- Age
- 3y ago

driamor 6 Pack PF-L Filter Cartridges Fish Tank Aquarium Filter Cartridge Replacement with Zeolite Compatible with PF20 PF30 PF40 and PF75 Power Filters
- Price
- $9.54
- Rating
- 4.5/5
- Reviews
- 844
- Age
- 3y ago

driamor 16 Pack PF-L Fish Tank Filter Cartridges Compatible with PF20 PF30 PF40 and PF75 Power Filters Aquarium Large Carbon Filters Cartridge Replacement
- Price
- $20.87
- Rating
- 4.5/5
- Reviews
- 844
- Age
- 3y ago

Top Fin EF-S Element Filter Cartridges (6 Count) for Fish Tank
- Price
- $18.66
- Rating
- 4.7/5
- Reviews
- 1,320
- Age
- 5y ago
Newest
by launch date
lasuroa Filter Cartridges Compatible with Topfin Top Fin EF-S & BF5 BETTAFLO 3.7x2.1 Inch Fish Tank Filter Cartridge Replacement for Aquarium Water Filtration (EF-S 6)
- Price
- $8.69
- Rating
- 4.3/5
- Reviews
- 103
- Age
- 1y ago

15 Pack Filter Cartridges for Filter Replacement Filter Cartridges for Top Fin EF-S Element and BF5 BETTAFLO
- Price
- $13.65
- Rating
- 4.6/5
- Reviews
- 523
- Age
- 2y ago

Zuqqony 8 Pack Filter Cartridges for Filter Replacement Filter Cartridges for Top Fin EF-S Element and BF5 BETTAFLO
- Price
- $8.77
- Rating
- 4.6/5
- Reviews
- 523
- Age
- 2y ago

Zuqqony 8 Pack PF-L Filter Cartridges Compatible with Top Fin Silenstream PF20 PF30 PF40 and PF75 Power Filters Remplacement Aquarium Carbon Cartridge with Zeolite
- Price
- $12.68
- Rating
- 4.6/5
- Reviews
- 879
- Age
- 2y ago

Zuqqony 15 Pack PF-L Filter Cartridges Compatible with Top Fin Silenstream PF20 PF30 PF40 and PF75 Power Filters Remplacement Aquarium Carbon Cartridge with Zeolite
- Price
- $18.44
- Rating
- 4.6/5
- Reviews
- 879
- Age
- 2y ago
Competition: brands, sellers & click share
The top 5 products take 45% of clicks — established leaders, but buyers still shop beyond them.
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.
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“Filters work well”
“Good for the price”
“The quality has been consistent”
“sizing is accurate”
“As advertised”
What buyers complain about
76% of reviews“Breaks easily”
“filtration is weak”
“Bad quality control”
“It doesnt fit the fitter”
“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.
Common Top Fin Filter Cartridges questions
The questions sellers ask about this niche, answered from the tracked metrics.
Best Flapen score
The highest-scoring niches we track right now, across every category.









