---
title: "cat water fountain filter — $5.0M/yr Amazon United States Niche, Score 65/100 - Flapen"
canonical_url: "https://flapen.com/research/us/pet-supplies/cat-water-fountain-filter"
last_updated: "2026-07-20T20:48:52.371Z"
locale: en
meta:
description: "cat water fountain filter clears our launch bar: a $5.0M/yr market growing +11.2% this quarter with returns at 0.8%. Data updated Jul 2026."
"og:description": "cat water fountain filter clears our launch bar: a $5.0M/yr market growing +11.2% this quarter with returns at 0.8%. Data updated Jul 2026."
"og:title": "cat water fountain filter — $5.0M/yr Amazon United States Niche, Score 65/100 - Flapen"
---
# **cat water fountain filter**
**Launch it**
A $5.0M/yr market growing +11.2% this quarter with returns at 0.8% — clears our launch bar.
Market size 98Growth 39Conversion 96Competition 53Returns 96Price range 50Avg price 77Brand share 74Review moat 28Quality gap 25
**Market size**
**Incredible****$5.0M**
$5.0M/yr · 2.4M searches
**Conversion**
**Incredible****13.0%**
search→purchase rate — share of searches ending in a sale
**Returns**
**Incredible****0.8%**
return rate — above 6% kills the launch gate
**Avg price**
**Great****$15.82**
avg listing price — sweet spot $15–$100
**Brand share**
**Good****60%**
top-5 brand share — brands hold most of the demand
**Competition**
**Good****53%**
top-5 click share — leaders hold, buyers still browse
**Price range**
**Good****$9.84–$20.22**
cheapest to priciest tracked listing — scored on the share inside $15–$100
**Growth**
**Okay****+11.2%**
90-day search growth — must beat 0% to launch
**Review moat**
**Okay****3,737.79**
avg incumbent reviews — the moat a new listing must climb
**Quality gap**
**Okay****4.6★**
avg incumbent rating — lower means beatable quality
According to Flapen's Amazon United States niche tracking, cat water fountain filter is a $5.0M/yr Amazon United States market (2.4M searches/yr). The top 5 brands hold 60% of demand. Verdict: Launch it — 65/100.
Data updated Jul 9, 2026 · scored weekly · [~~How we score niches ~~](https://flapen.com/research/methodology)
## **Market data**
- **Units sold / yr**
- **300K–400K**
- avg 12,500–15,000/product
- **Revenue / yr**
- **$4.7M–$6.3M**
- units × avg price
- **Launch success**
- **—**
- 4 of 4 new (360d)
- **Conversion rate**
- **13.0%**
- **Avg BSR**
- **#47**
- **Page quality**
- **0%**
- **Prime**
- **100%**
- **Sponsored**
- **100%**
- **Out of stock**
- **0.3%**
- **Avg brand age**
- **34 months**
- **Avg seller age**
- **167 days**
## **Competition**
The top 5 products take 53% of clicks — established leaders, but buyers still shop beyond them.
**Brands**
**21 **▼falling
**Sellers**
**32**
**Top-5 brand share**
**60%**
Top 20: 99%
**Top-5 click share**
**53%**
Top 20: 90%
**Open market**
**34%**
- PETLIBRO25% - Veken15% - GIOTOHUN8% - DOOOB7% - KANCHOU6% - Monsin6%
## **Demand & seasonality**
Weekly Amazon search volume, last 104 weeks — +11.2% search growth over the last 90 days.
60K40KPrime Day '24Prime Day '25Spike '26 seasonSepDecMarJunAugNovMarMay
No pronounced peak months · busiest ÷ quietest = 1.1×
[**Open Trend **](https://flapen.com/research/us/pet-supplies/cat-water-fountain-filter/trend)
## **Product shelf**
Each bubble is one product — market share against review moat; bubble size tracks estimated sales, color grades how beatable the incumbent looks.
0%10%$502K20%$1.0M30%$1.5M40%$2.0M101001K10K100K Reviews — right = deep review moatMarket share (90d) ≈ est. sales
Beatable (≤4.3★) Contested Strong incumbent (>4.7★)
All 28 tracked products in this niche — three views at once, no toggling.
### **Top sellers**
by 90-day click share
[1**PETLIBRO Replacement Filters for Dockstream Cat Water Fountain PLWF106/PLWF116/PLWF115/PLWF105/PLWF005 4 Months Set of Replacement Filters for Ultra Quiet Cat Fountain 8 Count for Pet Water Fountain**PETLIBRO**$18.29**4.3★6,190 rev](https://www.amazon.com/dp/B0B7J16VGK) [2**Veken Cat Water Fountain Filters 8 Pack Replacement Filters & 8 Pack Replacement Pre-Filter Sponges Set for 50oz 84oz 95oz or 108oz Automatic Pet Fountain Dog Water Dispenser**Veken**$16.82**4.8★9,034 rev](https://www.amazon.com/dp/B0BHNRDDDC) [3**GIOTOHUN Cat Water Fountain Filter Replacement: 12 Cat Fountain Filter - 12 Pet Fountain Filter - 6 Carbon Filters & 6 Foam Filters - Suitable for GIOTOHUN Stainless Steel Cat Fountain S11**GIOTOHUN**$19.90**4.7★2,201 rev](https://www.amazon.com/dp/B0DFMBP2BJ) [4**Cat Water Fountain Filter 24 Pack Cat Fountain Filters Cat Fountain Replacement Filters for 67oz/2L&108oz/3.2L Cat Water Fountain Pet Water Fountain Filters (12 Filters&12 Sponges)**DOOOB**$18.53**4.6★2,198 rev](https://www.amazon.com/dp/B0BQM9JH5B) [5**Cat Water Fountain Filter 16 Pack Cat Fountain Replacement Filters for Stainless Steel 67oz/2L Adjustable Water Flow Pet Water Fountain Dog Water Fountain (8+8 Pack)**KANCHOU**$11.96**4.7★5,557 rev](https://www.amazon.com/dp/B09K3FDCN9)
**~~View all top sellers →~~**
### **Newest**
by launch date
[**Cat Water Fountain Replacement Filters-12 Pack Cat Fountain Filters with 12 Pack Sponges Enhanced Compatibility Pet Fountain Filter Fit for 50oz 84oz 95oz or 108oz Automatic Pet Dog Water Dispenser**Bengor**$15.08**25 rev3mo ago](https://www.amazon.com/dp/B0GVY2YFNT) [**50+1 Pack Cat Water Fountain Filters Compatible with PETLIBRO Dockstream Water Fountain PLWF106/116/115/105/005 1-year Set of Replacement Filters (25 Filters + 25 Sponges+1 Brush)**AWoHH**$18.83**171 rev6mo ago](https://www.amazon.com/dp/B0GCNDPWYH) [**PETLIBRO Cat Water Fountain Filter Replacement 8 Packs Pet Fountain Filter & Sponges for Dockstream WF106/WF116/WF105/WF115/WF005/WF305 4 Months Set Easy-Swap PETLIBRO Cat Water Dispenser Filter**PETLIBRO**$18.32**346 rev11mo ago](https://www.amazon.com/dp/B0FBRQCXS3) [**32 Pcs Cat Water Fountain Replacement Filters-16 Pack Cat Fountain Filters with 16 Pack Sponges Enhanced Compatibility Pet Fountain Filter Fit for 95oz/2.8L 135oz/4L 67oz/2L Pet Drinking Fountain**VANVE**$14.99**923 rev11mo ago](https://www.amazon.com/dp/B0FK62DZ77) [**50 Pack Cat Water Fountain Filters for 108/3.2L& 67oz/2L& 4L/135oz Stainless Steel Pet Water Dispenser Cat/Dog Fountain Filter Replacement(25 Filters & 25 Sponges)**Beckacher**$19.74**687 rev1y ago](https://www.amazon.com/dp/B0FC5F82DL)
**~~View all new products →~~**
### **Trending**
90-day click momentum
[**Cat Water Fountain Replacement Filters-12 Pack Cat Fountain Filters with 12 Pack Sponges Enhanced Compatibility Pet Fountain Filter Fit for 50oz 84oz 95oz or 108oz Automatic Pet Dog Water Dispenser**Bengor**$15.08**4.4★**▲ 303%**](https://www.amazon.com/dp/B0GVY2YFNT) [**50+1 Pack Cat Water Fountain Filters Compatible with PETLIBRO Dockstream Water Fountain PLWF106/116/115/105/005 1-year Set of Replacement Filters (25 Filters + 25 Sponges+1 Brush)**AWoHH**$18.83**4.6★**▲ 270%**](https://www.amazon.com/dp/B0GCNDPWYH) [**ATMZIQXR Cat Water Fountain Filters: 12 Cat Fountain Filter Replacement - 3 Months Set of Replacement Filters for ATMZIQXR Pet Fountains S18 - Contains 6 Carbon Filters + 6 Sponges Filters**ATMZIQXR**$19.75**4.6★**▲ 119%**](https://www.amazon.com/dp/B0F5BC1YN4) [**Veken Cat Water Fountain Filter Classic 8 Pack Replacement Filters & 8 Pack Replacement Pre-Filter Sponges for 50oz 84oz 95oz or 108oz Automatic Pet Fountain Dog Water Dispenser**Veken**$15.43**4.7★**▲ 115%**](https://www.amazon.com/dp/B09T2TCZJM) [**25+25 Packs Replacement Filters for PETLIBRO Dockstream Cat Water Fountain PLWF106/PLWF116/PLWF115/PLWF105/PLWF005 12 Months Set of Replacement Filters for Pet Water Fountain 25 Filters + 25 Sponges**Cabiclean**$17.72**4.6★**▲ 113%**](https://www.amazon.com/dp/B0F1XRPLWK)
**~~View all trending →~~**
## **Reviews**
What buyers praise and complain about, mined from review topics.
### **What buyers love **
**Filtration**22%
*“Filters work great”*
**Value For Money**14%
*“very affordable”*
**Size-Overall**14%
*“Exact fit”*
**Quality-Overall**10%
*“Good quality, easy to use, keeps water fresh”*
**Advertised Vs Actual Product**9%
*“As advertised”*
**Pet Friendly**7%
*“The cat approves”*
**Ease Of Use**5%
*“Ease of use”*
**Ease Of Cleaning**5%
*“Great for cleaning water fountain”*
**Water Flow**4%
*“Helps keep the water clean”*
**Durability**2%
*“very durable”*
### **What buyers complain about **
**Size-Overall**24%
*“Too small”*
**Filtration**22%
*“Filter does not fit”*
**Quality-Overall**9%
*“Crappy quality”*
**Value For Money**6%
*“just a bit pricey”*
**Durability**4%
*“it broke after the second month”*
**Water Flow**4%
*“Slows fountain”*
**Advertised Vs Actual Product**3%
*“Pictures are deceiving”*
**Thickness**2%
*“the small black ones are too thick”*
**Ease Of Cleaning**2%
*“Cant properly clean filter”*
**Functionality-Overall**1%
*“Stopped working:/”*
### **Top return reasons **
**Size-Overall**64%
**Filtration**16%
**Compatibility-Overall**10%
**Advertised Vs Actual Product**3%
**Value For Money**1%
**Defective Material/Parts**1%
**Shape/Style**1%
**Functionality-Overall**1%
**Water Flow**1%
**Quality-Overall**0%
## **Common questions**
- **Is cat water fountain filter profitable to sell on Amazon United States?**
- The niche generates $5.0M/yr across 28 tracked products. 4 of 4 products launched in the last 360 days are still selling. 90-day search growth is +11.2%. Flapen's verdict: Launch it (65/100).
- **How competitive is the cat water fountain filter niche?**
- 21 brands and 32 sellers compete. The top 5 products take 53% of clicks and top 5 brands hold 60% of demand.
- **What do buyers complain about in cat water fountain filter?**
- Top complaints mined from reviews: Size-Overall, Filtration, Quality-Overall. The return rate is 0.8%.
- **When does demand for cat water fountain filter peak?**
- Demand is steady year-round — the busiest month runs 1.1× the quietest.
- **What does it cost to enter the cat water fountain filter niche?**
- Listings span $9.84–$20.22; the average listing price is $15.82 (sweet spot $15–$100). The average incumbent carries 3,738 reviews — the moat a new listing must climb.
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