top fin pf-l filter cartridges
Skip itBrand-locked demand (top 5 brands take 98% of clicks) — this niche doesn't clear our bar today.
Conversion
Incredible17.1%search→purchase rate — share of searches ending in a sale
Returns
Great1.4%return rate — above 6% kills the launch gate
Avg price
Great$19.18avg listing price — sweet spot $15–$100
Price range
Good$9.54–$29.25cheapest to priciest tracked listing — scored on the share inside $15–$100
Review moat
Good1,337.83avg incumbent reviews — the moat a new listing must climb
Market size
Okay$150K$150K/yr · 46K searches
Growth
Okay+1.3%90-day search growth — must beat 0% to launch
Quality gap
Bad4.6★avg incumbent rating — lower means beatable quality
Competition
Bad81%top-5 click share — a locked-up shelf
Brand share
Bad98%top-5 brand share — brand-locked demand
According to Flapen's Amazon United States niche tracking, top fin pf-l filter cartridges is a $150K/yr Amazon United States market (46K searches/yr). The top 5 brands hold 98% of demand. Verdict: Skip it — 43/100.
Data updated Jul 17, 2026 · scored weekly · How we score niches
top fin pf-l filter cartridges market data
- Units sold / yr
- 8K–10K
- avg 750–1,000/product
- Revenue / yr
- $153K–$192K
- units × avg price
- Launch success
- —
- 0 of 0 new (360d)
- Conversion rate
- 17.1%
- Avg BSR
- #84
- Page quality
- 0%
- Prime
- 100%
- Sponsored
- 92%
- Out of stock
- 0.0%
- Avg brand age
- 51 months
- Avg seller age
- 130 days
Competition & brand share
The top 5 products capture 81% of clicks — a locked-up shelf that new listings rarely crack.Brands
6 rising
Sellers
83
Top-5 brand share
98%
Top 20: 100%
Top-5 click share
81%
Top 20: 100%
Open market
0%
- HiTauing54%
- Top Fin24%
- Zuqqony9%
- driamor6%
- Pryitier4%
- ELCCOTYA2%
Demand & seasonality
Weekly Amazon search volume, last 104 weeks — +1.3% search growth over the last 90 days.No pronounced peak months · busiest ÷ quietest = 1.6×
Top top fin pf-l filter cartridges search terms
- top fin pf-l filter cartridges11K/yr
- pf-l fish tank filters12K/yr
- pfl8K/yr
- topfin pf-l filter cartridge8K/yr
- pfl fish tank filter3K/yr
- pf-l filter cartridges2K/yr
- top fin large power filter cartridges2K/yr
Top top fin pf-l filter cartridges 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 12 tracked products in this niche — three views at once, no toggling.
Top sellers
by 90-day click share
HiTauing 15 Packs PF-L Carbon Cartridges for PF20 PF30 PF40 and PF75 Power Filters
HiTauing$18.204.6★2,529 rev
HiTauing 8 Pack PF-L Carbon Cartridge for Silenstream PF20 PF30 PF40 and PF75 Power Filters
HiTauing$9.844.6★1,995 rev
Top Fin Silenstream Large PF-L Filter Cartridges Refill
Top Fin$24.324.8★627 rev
Top Fin Silenstream Large PF-L Filter Cartridges Refill for PF30 PF40 and PF75 Power Filters 6.5in x 4.5in - (6 Count)
Top Fin$19.644.7★3,706 rev
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
Zuqqony$18.444.6★879 rev
Newest
by launch date
ELCCOTYA 24 Pack PF-L Fish Tank Filter Cartridges Aquarium Filter Cartridges Replacement Compatible with Top Fin Silenstream PF20 PF30 PF40 and PF75 Power Filters
ELCCOTYA$29.2566 rev
Pryitier 16 Pack PF-L Filter Cartridges Compatible with PF20 PF30 PF40 and PF75 Power Filters Large Carbon Replacement Aquarium Refill for Fish Tank with Zeolite
Pryitier$21.30312 rev
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
Zuqqony$18.44879 rev
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
Zuqqony$12.68879 rev
driamor 24 Pack PF-L Fish Tank Filter Cartridges Compatible with PF20 PF30 PF40 and PF75 Power Filters Aquarium Large Carbon Filters Cartridge Replacement
driamor$29.10844 rev
Trending
90-day click momentumdriamor 24 Pack PF-L Fish Tank Filter Cartridges Compatible with PF20 PF30 PF40 and PF75 Power Filters Aquarium Large Carbon Filters Cartridge Replacement
driamor$29.104.5★
driamor 6 Pack PF-L Filter Cartridges Fish Tank Aquarium Filter Cartridge Replacement with Zeolite Compatible with PF20 PF30 PF40 and PF75 Power Filters
driamor$9.544.5★
ELCCOTYA 24 Pack PF-L Fish Tank Filter Cartridges Aquarium Filter Cartridges Replacement Compatible with Top Fin Silenstream PF20 PF30 PF40 and PF75 Power Filters
ELCCOTYA$29.254.7★
Top Fin Silenstream Large PF-L Filter Cartridges Refill for PF30 PF40 and PF75 Power Filters 6.5in x 4.5in - (6 Count)
Top Fin$19.644.7★
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
Zuqqony$12.684.6★
What buyers say about top fin pf-l filter cartridges
What buyers praise and complain about, mined from review topics.What buyers love
“Perfect for saving money on filters”
“much cheaper”
“Prefect fit”
“The quality has been consistent”
“As advertised”
“they clean off nicely”
“Cleans water very well”
“Works great and easy to change out”
“Works Perfectly and Keeps the Water Clean”
“Theyre fully compatible with my Top Fin Silenstream PF filter”
What buyers complain about
“They don't last as long as most other brands”
“Not a good filter”
“Tapi filters are too expensive”
“Thicker and taller than original filters”
“it started to stink badly when I used these”
“they certainly didnt keep the water clean”
“These have about 50% LESS carbon in each reason for cost savings”
“with the hose on the side filter going back into the tank the hose kept kinking cutting off water flow”
“Doesnt work, stopped working after 2nd attempt”
“These can not be reused more than 2 or 3 times”
Top return reasons
Common questions
- Is top fin pf-l filter cartridges profitable to sell on Amazon United States?
- The niche generates $150K/yr across 12 tracked products. 90-day search growth is +1.3%. Flapen's verdict: Skip it (43/100).
- How competitive is the top fin pf-l filter cartridges niche?
- 6 brands and 83 sellers compete. The top 5 products take 81% of clicks and top 5 brands hold 98% of demand.
- What do buyers complain about in top fin pf-l filter cartridges?
- Top complaints mined from reviews: Durability, Filtration, Value For Money. The return rate is 1.4%.
- When does demand for top fin pf-l filter cartridges peak?
- Demand is steady year-round — the busiest month runs 1.6× the quietest.
- What does it cost to enter the top fin pf-l filter cartridges niche?
- Listings span $9.54–$29.25; the average listing price is $19.18 (sweet spot $15–$100). The average incumbent carries 1,338 reviews — the moat a new listing must climb.