---
title: "Cat Water Fountain Filters — £338K/yr Amazon UK Niche (2026) - Flapen"
canonical_url: "https://flapen.com/research/uk/pet-supplies/cat-water-fountain-filters"
last_updated: "2026-07-31T10:43:34.441Z"
locale: en
meta:
description: "Niche score 60/100 · £338K/yr market. A failed launch gate (market size, growth, or returns) keeps it on the watch list. Data updated Jul 2026."
"og:description": "Niche score 60/100 · £338K/yr market. A failed launch gate (market size, growth, or returns) keeps it on the watch list. Data updated Jul 2026."
"og:title": "Cat Water Fountain Filters — £338K/yr Amazon UK Niche (2026) - Flapen"
---
# **cat water fountain filters**
**Worth a look**
Shows low returns (0.6%), but a failed launch gate (market size, growth, or returns) keeps it on the watch list.
Market size 53Growth 39Conversion 93Competition 80Returns 97Price range 23Avg price 34Brand share 81Review moat 24Quality gap 37
**Returns**
**Incredible****0.6%**
return rate — above 5% kills the launch gate
**Conversion**
**Great****11.4%**
search→purchase rate — share of searches ending in a sale
**Brand share**
**Great****54%**
top-5 brand share — no brand owns this niche
**Competition**
**Great****35%**
top-5 click share — an open shelf
**Market size**
**Good****£338K**
£338K/yr · 294K searches
**Growth**
**Okay****+11.2%**
90-day search growth — must beat 0% to launch
**Quality gap**
**Okay****4.5★**
avg incumbent rating — lower means beatable quality
**Avg price**
**Okay****£10.05**
avg listing price — sweet spot $15–$100
**Review moat**
**Bad****5,235.93**
avg incumbent reviews — the moat a new listing must climb
**Price range**
**Bad****£3.41–£18.50**
cheapest to priciest tracked listing — scored on the share inside $15–$100
According to Flapen's Amazon United Kingdom niche tracking, cat water fountain filters is a £338K/yr Amazon United Kingdom market (294K searches/yr). The top 5 brands hold 54% of demand. Verdict: Worth a look — 60/100.
Data updated Jul 28, 2026 · scored weekly · [~~How we score niches ~~](https://flapen.com/research/methodology)
## **cat water fountain filters market data**
- **Units sold / yr**
- **30K–40K**
- avg 500–750/product
- **Revenue / yr**
- **£302K–£402K**
- units × avg price
- **Conversion rate**
- **11.4%**
- **Avg BSR**
- **#66**
- **Page quality**
- **0%**
- **Prime**
- **98%**
- **Sponsored**
- **82%**
- **Out of stock**
- **6.8%**
- **Avg brand age**
- **26 months**
- **Avg seller age**
- **194 days**
## **Competition & brand share**
Clicks spread well past the top 5 (35% combined) — an open shelf where new products get seen.
**Brands**
**32 **▼falling
**Sellers**
**69**
**Top-5 brand share**
**54%**
Top 20: 92%
**Top-5 click share**
**35%**
Top 20: 77%
**Open market**
**42%**
- Catit24% - VILLAPOOL11% - GIOTOHUN10% - BalimoPet5% - ANKA5% - PewinGo4%
## **Demand & seasonality**
Weekly Amazon search volume, last 104 weeks — +11.2% search growth over the last 90 days.
7K5KPrime Day '25Spike '26 seasonSepDecMarJunAugNovMarMay
No pronounced peak months · busiest ÷ quietest = 1.3×
[**Open Trend **](https://flapen.com/research/uk/pet-supplies/cat-water-fountain-filters/trend)
## **Top cat water fountain filters search terms**
- **cat water fountain filters**82K/yr+17.5%6.7% conv. - **cat fountain filters**56K/yr+6.9%8.1% conv. - **catit water fountain filter**42K/yr+5.8%15.3% conv. - **filters for cat water fountain**14K/yr+28.4%4.9% conv. - **cat filters for water fountain**12K/yr+18.0%9.0% conv. - **pet fountain filters**10K/yr+15.4%3.6% conv. - **pet water fountain filters**9K/yr-1.3%4.0% conv. - **filter for cat water fountain**6K/yr+31.7%6.4% conv. - **cat water filter**8K/yr-0.9%6.6% conv. - **cat water fountain filter**7K/yr+9.0%5.5% conv. [**All search terms **](https://flapen.com/research/uk/pet-supplies/cat-water-fountain-filters/search-terms)
## **Top cat water fountain filters 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%3%£10K6%£20K9%£30K12%£41K1101001K10K100K Reviews — right = deep review moatMarket share (90d) ≈ est. sales
Beatable (≤4.3★) Contested Strong incumbent (>4.7★)
All 24 tracked products in this niche — three views at once, no toggling.
### **Top sellers**
by 90-day click share
[1**VILLAPOOL 20 Pack Cat Water Fountain Filters for 3.2L/2L Cat Water Fountain**VILLAPOOL**£8.01**4.6★128 rev](https://www.amazon.co.uk/dp/B0F83LW8MB) [2**Catit PIXI Genuine Replacement Water Fountain Filter Cartridges 6 Pack**Catit**£6.45**4.8★11,370 rev](https://www.amazon.co.uk/dp/B095CFB3VZ) [3**Genuine Catit Fountain Filters for 3 Litre Flower Fountain Fresh and Clear Fountains Only Pack of 5**Catit**£8.65**4.7★46,567 rev](https://www.amazon.co.uk/dp/B0748H3GKN) [4**BalimoPet Animal Water Fountain Filters Replacement Kit 6Pcs Activated Carbon and 6Pcs Foam Filter Cat Fountain Filters Set for 2.2L/2.5L Pet Water Fountain with Triple Filtration**BalimoPet**£17.04**4.4★40 rev](https://www.amazon.co.uk/dp/B0F93YNW4S) [5**GIOTOHUN Cat Water Fountain Filter: 12 Cat Fountain Filter Replacement - 6 Filters & 6 Sponges - 12 Pet Fountains Filters Replacement Suitable for ATMZIQXR GIOTOHUN KOOGMOON UMOCUOY IHOUONE HOOISE**GIOTOHUN**£8.80**4.6★160 rev](https://www.amazon.co.uk/dp/B0F93X6FTG)
**~~View all top sellers →~~**
### **Newest**
by launch date
[**12Pcs Cat Water Fountain Filters Cat Fountain Filters Set 6 Activated Carbon and 6 Foam Filters Triple Filtration for 2L 3.2L Pet Water Dispenser**upkpvid**£3.41**2 rev3mo ago](https://www.amazon.co.uk/dp/B0GF3C5WM5) [**24 Pcs Pet Water Fountain Filters for S11 Stainless Steel Cat Water 12 Pack Filters & 12 Pack Pre-Filter Sponges Set for 2.2L/74oz 2.6L/88oz 3.2L/108oz Dog Drinking Fountain**PETPNR**£12.57**95 rev8mo ago](https://www.amazon.co.uk/dp/B0FS1HMJQL) [**Cat Water Fountain Filter Replacement: 4 Carbon Filters & 4 Foam Sponges Kitty Spout Pump Filters for 108Oz/3.2L & 67Oz/2L Stainless Steel Pet Water Dispenser Cat Dog**EffloToyz**£10.95**52 rev9mo ago](https://www.amazon.co.uk/dp/B0FM8QG5XB) [**BalimoPet Animal Water Fountain Filters Replacement Kit 6Pcs Activated Carbon and 6Pcs Foam Filter Cat Fountain Filters Set for 2.2L/2.5L Pet Water Fountain with Triple Filtration**BalimoPet**£17.04**40 rev12mo ago](https://www.amazon.co.uk/dp/B0F93YNW4S) [**SAIERTE Cat Water Fountain Filters Compatible with Parner 2.4L Pet Water Dispenser 8 Pack Replacement Filter Cartridges with 1 Cleaning Brush & 2 Pump Protection Sponges for Cats and Dogs**SAIERTE**£8.06**21 rev1y ago](https://www.amazon.co.uk/dp/B0FK4HD5DP)
**~~View all new products →~~**
### **Trending**
90-day click momentum
[**12Pcs Cat Water Fountain Filters Cat Fountain Filters Set 6 Activated Carbon and 6 Foam Filters Triple Filtration for 2L 3.2L Pet Water Dispenser**upkpvid**£3.41**4.5★**▲ 278%**](https://www.amazon.co.uk/dp/B0GF3C5WM5) [**Cat Water Fountain Filter Replacement: 4 Carbon Filters & 4 Foam Sponges Kitty Spout Pump Filters for 108Oz/3.2L & 67Oz/2L Stainless Steel Pet Water Dispenser Cat Dog**EffloToyz**£10.95**4.3★**▲ 270%**](https://www.amazon.co.uk/dp/B0FM8QG5XB) [**GIOTOHUN Cat Water Fountain Filter: 12 Cat Fountain Filter Replacement - 6 Filters & 6 Sponges - 12 Pet Fountains Filters Replacement Suitable for ATMZIQXR GIOTOHUN KOOGMOON UMOCUOY IHOUONE HOOISE**GIOTOHUN**£8.80**4.6★**▲ 263%**](https://www.amazon.co.uk/dp/B0F93X6FTG) [**BalimoPet Animal Water Fountain Filters Replacement Kit 6Pcs Activated Carbon and 6Pcs Foam Filter Cat Fountain Filters Set for 2.2L/2.5L Pet Water Fountain with Triple Filtration**BalimoPet**£17.04**4.4★**▲ 129%**](https://www.amazon.co.uk/dp/B0F93YNW4S) [**BONBELONG Cat Water Fountain Filters Cat Fountain Filter Replacement Pet Filters for Water Dispenser Drinking 8PACK**BONBELONG**£8.24**4.2★**▲ 64%**](https://www.amazon.co.uk/dp/B0925DNJ2Y)
**~~View all trending →~~**
## **What buyers say about cat water fountain filters**
What buyers praise and complain about, mined from review topics.
### **What buyers love **
**Filtration**25%
*“Very good quality filters”*
**Value For Money**17%
*“Good for the price”*
**Quality-Overall**13%
*“The same quality as OE”*
**Size-Overall**12%
*“Fit well”*
**Advertised Vs Actual Product**11%
*“Just as advertised”*
**Ease Of Use**5%
*“Easy to use”*
**Pet Friendly**4%
*“perfect for my pets”*
**Ease Of Cleaning**3%
*“Keeps the water clean”*
**Water Flow**2%
*“Great, as advertised and fit the fountain well”*
**Durability**1%
*“durable”*
### **What buyers complain about **
**Filtration**18%
*“does not get filtered”*
**Value For Money**17%
*“They are considerably more expensive”*
**Size-Overall**14%
*“where they look huge”*
**Quality-Overall**6%
*“Garbage”*
**Durability**5%
*“The pump stopped working”*
**Thickness**5%
*“too thin”*
**Ease Of Cleaning**3%
*“difficult to clean etc”*
**Compatibility-Overall**3%
*“These filters are not compatible”*
**Advertised Vs Actual Product**3%
*“Misleading advertising”*
**Contamination**2%
*“each filter was unsealed also”*
### **Top return reasons **
**Size-Overall**56%
**Filtration**16%
**Compatibility-Overall**12%
**Advertised Vs Actual Product**9%
**Defective Material/Parts**1%
**Functionality-Overall**1%
**Quality-Overall**1%
**Value For Money**1%
**Water Resistance**1%
**Water Flow**1%
## **Common questions**
- **Is cat water fountain filters profitable to sell on Amazon United Kingdom?**
- The niche generates £338K/yr across 45 tracked products. 1 of 5 products launched in the last 360 days are still selling. 90-day search growth is +11.2%. Flapen's verdict: Worth a look (60/100).
- **How competitive is the cat water fountain filters niche?**
- 32 brands and 69 sellers compete. The top 5 products take 35% of clicks and top 5 brands hold 54% of demand.
- **What do buyers complain about in cat water fountain filters?**
- Top complaints mined from reviews: Filtration, Value For Money, Size-Overall. The return rate is 0.6%.
- **When does demand for cat water fountain filters peak?**
- Demand is steady year-round — the busiest month runs 1.3× the quietest.
- **What does it cost to enter the cat water fountain filters niche?**
- Listings span £3.41–£18.50; the average listing price is £10.05 (sweet spot $15–$100). The average incumbent carries 5,236 reviews — the moat a new listing must climb.
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