---
title: "Top Fin Pf-s Filter Cartridge — $182K/yr Amazon US Niche (2026) - Flapen"
canonical_url: "https://flapen.com/research/us/pet-supplies/top-fin-pf-s-filter-cartridge"
last_updated: "2026-07-21T19:38:25.017Z"
locale: en
meta:
description: "Niche score 33/100 · $182K/yr market · 80K searches/yr · $12.10 avg price. Doesn't clear our bar today. Data updated Jul 2026."
"og:description": "Niche score 33/100 · $182K/yr market · 80K searches/yr · $12.10 avg price. Doesn't clear our bar today. Data updated Jul 2026."
"og:title": "Top Fin Pf-s Filter Cartridge — $182K/yr Amazon US Niche (2026) - Flapen"
---
# **top fin pf-s filter cartridge**
**Skip it**
Brand-locked demand (top 5 brands take 100% of clicks) — this niche doesn't clear our bar today.
Market size 37Growth 18Conversion 99Competition 11Returns 43Price range 40Avg price 51Brand share 0Review moat 45Quality gap 25
**Conversion**
**Incredible****18.9%**
search→purchase rate — share of searches ending in a sale
**Avg price**
**Good****$12.10**
avg listing price — sweet spot $15–$100
**Review moat**
**Okay****1,995.89**
avg incumbent reviews — the moat a new listing must climb
**Returns**
**Okay****3.8%**
return rate — above 6% kills the launch gate
**Price range**
**Okay****$8.48–$19.31**
cheapest to priciest tracked listing — scored on the share inside $15–$100
**Market size**
**Okay****$182K**
$182K/yr · 80K searches
**Quality gap**
**Okay****4.6★**
avg incumbent rating — lower means beatable quality
**Growth**
**Bad****-14.0%**
90-day search growth — must beat 0% to launch
**Competition**
**Bad****86%**
top-5 click share — a locked-up shelf
**Brand share**
**Bad****100%**
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 ~~](https://flapen.com/research/methodology)
## **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.
2K1KSpike '25Prime Day '25Spike '26 seasonSepDecMarJunAugNovMarMay
No pronounced peak months · busiest ÷ quietest = 1.5×
[**Open Trend **](https://flapen.com/research/us/pet-supplies/top-fin-pf-s-filter-cartridge/trend)
## **Top top fin pf-s filter cartridge search terms**
- **top fin pf-s filter cartridge**15K/yr+7.6%19.7% conv. - **topfin pf-s filter cartridge**11K/yr+19.3%15.8% conv. - **pf-s fish tank filters**13K/yr-11.1%18.9% conv. - **top fin 10 gallon filter**5K/yr+3.1%4.5% conv. - **pfs fish tank filter**5K/yr-8.8%20.4% conv. - **topfin aquarium filter 10 gallon**8K/yr-66.1%6.6% conv. - **top fin pf-s**4K/yr-18.6%19.5% conv. - **top fin filter cartridges pf-s**3K/yr-32.7%18.3% conv. - **pf10 filter cartridges**2K/yr-22.7%14.5% conv. - **aqua culture s filter cartridge**9K/yr-47.6%1.2% conv. [**All search terms **](https://flapen.com/research/us/pet-supplies/top-fin-pf-s-filter-cartridge/search-terms)
## **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.
0%10%$18K20%$36K30%$55K40%$73K1001K10K Reviews — right = deep review moatMarket share (90d) ≈ est. sales
Beatable (≤4.3★) Contested Strong incumbent (>4.7★)
All 9 tracked products in this niche — three views at once, no toggling.
### **Top sellers**
by 90-day click share
[1**HiTauing 12 Packs PF-S Filter Cartridge for PF10 Power Filters ONLY fit to Model PF10 Power Filters**HiTauing**$11.40**4.6★2,404 rev](https://www.amazon.com/dp/B09ZL5RGLJ) [2**Zuqqony 15 Pack PF-S Filter Cartridges Compatible with Silenstream PF10 Power Filters Remplacement Aquarium Carbon Cartridge with Zeolite**Zuqqony**$13.95**4.5★1,406 rev](https://www.amazon.com/dp/B0CJ2QFKNG) [3**Top Fin Silenstream PF-S Refill for PF10 Power Filters 5.5in x 3.1 - (3 Count)**Top Fin**$13.93**4.7★1,625 rev](https://www.amazon.com/dp/B08NGVZJVZ) [4**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**$9.28**4.5★1,406 rev](https://www.amazon.com/dp/B0CJ2PNFM3) [5**HiTauing 6 Packs PF-S Filter Cartridge for PF10 Power Filters Only Fit to Model PF10 Power Filters**HiTauing**$8.48**4.6★2,404 rev](https://www.amazon.com/dp/B09D2MZHX8)
**~~View all top sellers →~~**
### **Newest**
by launch date
[**Zuqqony 15 Pack PF-S Filter Cartridges Compatible with Silenstream PF10 Power Filters Remplacement Aquarium Carbon Cartridge with Zeolite**Zuqqony**$13.95**1,406 rev2y ago](https://www.amazon.com/dp/B0CJ2QFKNG) [**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**$9.28**1,406 rev2y ago](https://www.amazon.com/dp/B0CJ2PNFM3) [**driamor 8 Pack PF-S Filter Cartridges Compatible with PF10 Power Filters Small Fish Tank Filters Cartridge Replacement with Zeolite**driamor**$9.60**910 rev2y ago](https://www.amazon.com/dp/B0CCQR6ZFB) [**HiTauing 8 Packs PF-S Filter Cartridge for PF10 Power Filters Only Fit to Model PF10 Power Filters**HiTauing**$9.14**2,404 rev3y ago](https://www.amazon.com/dp/B0BC1PZM9S) [**HiTauing 15 Packs PF-S Filter Cartridge for Silenstream PF10 Power Filters Only Fit to Model PF10 Power Filters**HiTauing**$13.81**2,404 rev3y ago](https://www.amazon.com/dp/B0BBZZH2RD)
**~~View all new products →~~**
### **Trending**
90-day click momentum
[**Top Fin Silenstream PF-S Refill for PF10 Power Filters 5.5in x 3.1 - (3 Count)**Top Fin**$13.93**4.7★**▲ 130%**](https://www.amazon.com/dp/B08NGVZJVZ) [**driamor 8 Pack PF-S Filter Cartridges Compatible with PF10 Power Filters Small Fish Tank Filters Cartridge Replacement with Zeolite**driamor**$9.60**4.6★**▲ 107%**](https://www.amazon.com/dp/B0CCQR6ZFB) [**HiTauing 15 Packs PF-S Filter Cartridge for Silenstream PF10 Power Filters Only Fit to Model PF10 Power Filters**HiTauing**$13.81**4.6★**▲ 78%**](https://www.amazon.com/dp/B0BBZZH2RD) [**HiTauing 6 Packs PF-S Filter Cartridge for PF10 Power Filters Only Fit to Model PF10 Power Filters**HiTauing**$8.48**4.6★**▲ 39%**](https://www.amazon.com/dp/B09D2MZHX8) [**HiTauing 12 Packs PF-S Filter Cartridge for PF10 Power Filters ONLY fit to Model PF10 Power Filters**HiTauing**$11.40**4.6★**— 2%**](https://www.amazon.com/dp/B09ZL5RGLJ)
**~~View all trending →~~**
## **What buyers say about top fin pf-s filter cartridge**
What buyers praise and complain about, mined from review topics.
### **What buyers love **
**Filtration**22%
*“Filters Well”*
**Value For Money**19%
*“Great value”*
**Size-Overall**17%
*“sizing is accurate”*
**Quality-Overall**16%
*“Zero complaints”*
**Advertised Vs Actual Product**11%
*“As advertised”*
**Ease Of Cleaning**3%
*“It was clean 1 week after use”*
**Durability**2%
*“Durable”*
**Ease Of Use**1%
*“easy to use”*
**Compatibility-Overall**1%
*“Works great with my top fin filter”*
**Eco Friendliness**1%
*“both have maintained healthy ecosystems”*
### **What buyers complain about **
**Filtration**25%
*“Disappointed with Filtration Performance”*
**Size-Overall**20%
*“It doesnt fit the fitter”*
**Quality-Overall**13%
*“Cheap”*
**Water Resistance**8%
*“there was no noticeable improvement in water quality”*
**Smell**5%
*“Smelled so bad of perfumes that the scent went through the sealed plastic bag”*
**Durability**5%
*“1st one used was fine lasted about a month or over”*
**Color**5%
*“the water turned cream color over night”*
**Residue**5%
*“Puts lots of tiny fibers in tank even though it was rinsed well prior to inserting”*
### **Top return reasons **
**Size-Overall**87%
**Filtration**5%
**Compatibility-Overall**4%
**Advertised Vs Actual Product**3%
**Value For Money**1%
**Functionality-Overall**0%
**Shape/Style**0%
**Material Quality**0%
**Quality-Overall**0%
**Moist/Dry**0%
## **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.
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