top fin pf-s filter cartridge
Skip itBrand-locked demand (top 5 brands take 100% of clicks) — this niche doesn't clear our bar today.
Conversion
Incredible18.9%search→purchase rate — share of searches ending in a sale
Avg price
Good$12.10avg listing price — sweet spot $15–$100
Review moat
Okay1,995.89avg incumbent reviews — the moat a new listing must climb
Returns
Okay3.8%return rate — above 6% kills the launch gate
Price range
Okay$8.48–$19.31cheapest to priciest tracked listing — scored on the share inside $15–$100
Market size
Okay$182K$182K/yr · 80K searches
Quality gap
Okay4.6★avg incumbent rating — lower means beatable quality
Growth
Bad-14.0%90-day search growth — must beat 0% to launch
Competition
Bad86%top-5 click share — a locked-up shelf
Brand share
Bad100%top-5 brand share — brand-locked demand
According to Flapen's Amazon United States niche tracking, top fin pf-s filter cartridge is a $182K/yr Amazon United States market (80K searches/yr). The top 5 brands hold 100% of demand. Verdict: Skip it — 33/100.
Data updated Jul 17, 2026 · scored weekly · How we score niches
top fin pf-s filter cartridge market data
- Units sold / yr
- 13K–15K
- avg 1,000–1,250/product
- Revenue / yr
- $151K–$182K
- units × avg price
- Launch success
- —
- 0 of 0 new (360d)
- Conversion rate
- 18.9%
- Avg BSR
- #37
- Page quality
- 0%
- Prime
- 100%
- Sponsored
- 100%
- Out of stock
- 0.6%
- Avg brand age
- 48 months
- Avg seller age
- 123 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
70
Top-5 brand share
100%
Top 20: 100%
Top-5 click share
86%
Top 20: 100%
Open market
0%
- HiTauing49%
- Zuqqony29%
- Top Fin18%
- driamor4%
- Open — no brand owns it (0%)
Demand & seasonality
Weekly Amazon search volume, last 104 weeks — -14.0% search growth over the last 90 days.No pronounced peak months · busiest ÷ quietest = 1.5×
Top top fin pf-s filter cartridge search terms
- top fin pf-s filter cartridge15K/yr
- topfin pf-s filter cartridge11K/yr
- pf-s fish tank filters13K/yr
- top fin 10 gallon filter5K/yr
- pfs fish tank filter5K/yr
- topfin aquarium filter 10 gallon8K/yr
- top fin pf-s4K/yr
- top fin filter cartridges pf-s3K/yr
- pf10 filter cartridges2K/yr
- aqua culture s filter cartridge9K/yr
Top top fin pf-s filter cartridge 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.
All 9 tracked products in this niche — three views at once, no toggling.
Top sellers
by 90-day click share
HiTauing 12 Packs PF-S Filter Cartridge for PF10 Power Filters ONLY fit to Model PF10 Power Filters
HiTauing$11.404.6★2,404 rev
Zuqqony 15 Pack PF-S Filter Cartridges Compatible with Silenstream PF10 Power Filters Remplacement Aquarium Carbon Cartridge with Zeolite
Zuqqony$13.954.5★1,406 rev
Top Fin Silenstream PF-S Refill for PF10 Power Filters 5.5in x 3.1 - (3 Count)
Top Fin$13.934.7★1,625 rev
Zuqqony 8 Pack PF-S Filter Cartridges Only Compatible with Silenstream PF10 Power Filters Replacement Aquarium Carbon Cartridge with Zeolite Size 5.5 in L x 3.1 in
Zuqqony$9.284.5★1,406 rev
HiTauing 6 Packs PF-S Filter Cartridge for PF10 Power Filters Only Fit to Model PF10 Power Filters
HiTauing$8.484.6★2,404 rev
Newest
by launch dateZuqqony 15 Pack PF-S Filter Cartridges Compatible with Silenstream PF10 Power Filters Remplacement Aquarium Carbon Cartridge with Zeolite
Zuqqony$13.951,406 rev
Zuqqony 8 Pack PF-S Filter Cartridges Only Compatible with Silenstream PF10 Power Filters Replacement Aquarium Carbon Cartridge with Zeolite Size 5.5 in L x 3.1 in
Zuqqony$9.281,406 rev
driamor 8 Pack PF-S Filter Cartridges Compatible with PF10 Power Filters Small Fish Tank Filters Cartridge Replacement with Zeolite
driamor$9.60910 rev
HiTauing 8 Packs PF-S Filter Cartridge for PF10 Power Filters Only Fit to Model PF10 Power Filters
HiTauing$9.142,404 rev
HiTauing 15 Packs PF-S Filter Cartridge for Silenstream PF10 Power Filters Only Fit to Model PF10 Power Filters
HiTauing$13.812,404 rev
Trending
90-day click momentumTop Fin Silenstream PF-S Refill for PF10 Power Filters 5.5in x 3.1 - (3 Count)
Top Fin$13.934.7★
driamor 8 Pack PF-S Filter Cartridges Compatible with PF10 Power Filters Small Fish Tank Filters Cartridge Replacement with Zeolite
driamor$9.604.6★
HiTauing 15 Packs PF-S Filter Cartridge for Silenstream PF10 Power Filters Only Fit to Model PF10 Power Filters
HiTauing$13.814.6★
HiTauing 6 Packs PF-S Filter Cartridge for PF10 Power Filters Only Fit to Model PF10 Power Filters
HiTauing$8.484.6★
HiTauing 12 Packs PF-S Filter Cartridge for PF10 Power Filters ONLY fit to Model PF10 Power Filters
HiTauing$11.404.6★
What buyers say about top fin pf-s filter cartridge
What buyers praise and complain about, mined from review topics.What buyers love
“Filters Well”
“Great value”
“sizing is accurate”
“Zero complaints”
“As advertised”
“It was clean 1 week after use”
“Durable”
“easy to use”
“Works great with my top fin filter”
“both have maintained healthy ecosystems”
What buyers complain about
“Disappointed with Filtration Performance”
“It doesnt fit the fitter”
“Cheap”
“there was no noticeable improvement in water quality”
“Smelled so bad of perfumes that the scent went through the sealed plastic bag”
“1st one used was fine lasted about a month or over”
“the water turned cream color over night”
“Puts lots of tiny fibers in tank even though it was rinsed well prior to inserting”
Top return reasons
Common questions
- Is top fin pf-s filter cartridge profitable to sell on Amazon United States?
- The niche generates $182K/yr across 9 tracked products. 90-day search growth is -14.0%. Flapen's verdict: Skip it (33/100).
- How competitive is the top fin pf-s filter cartridge niche?
- 4 brands and 70 sellers compete. The top 5 products take 86% of clicks and top 5 brands hold 100% of demand.
- What do buyers complain about in top fin pf-s filter cartridge?
- Top complaints mined from reviews: Filtration, Size-Overall, Quality-Overall. The return rate is 3.8%.
- When does demand for top fin pf-s filter cartridge peak?
- Demand is steady year-round — the busiest month runs 1.5× the quietest.
- What does it cost to enter the top fin pf-s filter cartridge niche?
- Listings span $8.48–$19.31; the average listing price is $12.10 (sweet spot $15–$100). The average incumbent carries 1,996 reviews — the moat a new listing must climb.