---
title: "Oneisall Water Fountain Filters — $56K/yr Amazon US Niche (2026) - Flapen"
canonical_url: "https://flapen.com/research/us/pet-supplies/oneisall-water-fountain-filters"
last_updated: "2026-07-21T17:17:52.403Z"
locale: en
meta:
description: "Niche score 55/100 · $56K/yr market · 22K searches/yr · $17.26 avg price. A small market ($56K/yr) keeps it on the watch list. Data updated Jul 2026."
"og:description": "Niche score 55/100 · $56K/yr market · 22K searches/yr · $17.26 avg price. A small market ($56K/yr) keeps it on the watch list. Data updated Jul 2026."
"og:title": "Oneisall Water Fountain Filters — $56K/yr Amazon US Niche (2026) - Flapen"
---
# **oneisall water fountain filters**
**Worth a look**
Shows searches that convert (14.7% search→purchase), but a small market ($56K/yr) keeps it on the watch list.
Market size 14Growth 42Conversion 97Competition 51Returns 90Price range 85Avg price 81Brand share 50Review moat 72Quality gap 37
**Conversion**
**Incredible****14.7%**
search→purchase rate — share of searches ending in a sale
**Returns**
**Great****1.3%**
return rate — above 6% kills the launch gate
**Price range**
**Great****$9.26–$56.77**
cheapest to priciest tracked listing — scored on the share inside $15–$100
**Avg price**
**Great****$17.26**
avg listing price — sweet spot $15–$100
**Review moat**
**Good****632**
avg incumbent reviews — the moat a new listing must climb
**Competition**
**Good****54%**
top-5 click share — leaders hold, buyers still browse
**Brand share**
**Good****75%**
top-5 brand share — brands hold most of the demand
**Growth**
**Okay****+13.7%**
90-day search growth — must beat 0% to launch
**Quality gap**
**Okay****4.5★**
avg incumbent rating — lower means beatable quality
**Market size**
**Bad****$56K**
$56K/yr · 22K searches
According to Flapen's Amazon United States niche tracking, oneisall water fountain filters is a $56K/yr Amazon United States market (22K searches/yr). The top 5 brands hold 75% of demand. Verdict: Worth a look — 55/100.
Data updated Jul 9, 2026 · scored weekly · [~~How we score niches ~~](https://flapen.com/research/methodology)
## **oneisall water fountain filters market data**
- **Units sold / yr**
- **3K–4K**
- avg 100–250/product
- **Revenue / yr**
- **$52K–$69K**
- units × avg price
- **Launch success**
- **11%**
- 1 of 9 new (360d)
- **Conversion rate**
- **14.7%**
- **Avg BSR**
- **#305**
- **Page quality**
- **0%**
- **Prime**
- **100%**
- **Sponsored**
- **85%**
- **Out of stock**
- **8.6%**
- **Avg brand age**
- **15 months**
- **Avg seller age**
- **277 days**
## **Competition & brand share**
The top 5 products take 54% of clicks — established leaders, but buyers still shop beyond them.
**Brands**
**11 **▲rising
**Sellers**
**15**
**Top-5 brand share**
**75%**
Top 20: 100%
**Top-5 click share**
**54%**
Top 20: 100%
**Open market**
**19%**
- oneisall35% - OUPUSES18% - HOETEK8% - Cunina7% - Stitokg6% - HAVANSIDY6%
## **Top oneisall 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%5%$3K10%$6K15%$8K20%$11K1101001K10K Reviews — right = deep review moatMarket share (90d) ≈ est. sales
Beatable (≤4.3★) Contested Strong incumbent (>4.7★)1 product missing review or click data not plotted
All 20 tracked products in this niche — three views at once, no toggling.
### **Top sellers**
by 90-day click share
[1**oneisall 8 Set Filters for PWF-002 Dog Fountain**oneisall**$16.97**4.4★5,128 rev](https://www.amazon.com/dp/B0C4NNQY4R) [2**18 Sets Pet Water Fountain Filter Replacement Compatible with Oneisall PWF-002 7L/230oz Dog Water Fountain Dog Water Bowl Filters with Pre-Filters and Pump Sponges**OUPUSES**$14.83**4.5★130 rev](https://www.amazon.com/dp/B0F2FPTC1C) [3**16+16 Pack Replacement Filters for Oneisall PW04 3.5L Wireless Cat Water Fountain Includes 16 Filters & 16 Sponges**HOETEK**$18.14**4.5★77 rev](https://www.amazon.com/dp/B0F996PB5V) [4**oneisall 8Set Filters for for PW07SAU 10L/2.64Gal Stainless Steel Dog Water Fountain**oneisall**$16.88**4.6★121 rev](https://www.amazon.com/dp/B0DJVW5JN9) [5**12-Pack Dog Water Fountain Filter Compatible with Oneisall PW07SAU 10L/2.64Gal12 Filters 12 Pre-Filters & 12 Pump Sponges - High-Performance Multilayer FiltrationClean & Safe Drinking Water for Dog**Stitokg**$17.24**4.1★16 rev](https://www.amazon.com/dp/B0FW4WPG6V)
**~~View all top sellers →~~**
### **Newest**
by launch date
[**24+24+24 Pack Replacement Filters for oneisall 7L/230oz/1.8G Dog Fountains 24 Filters + 24 Round Sponges + 24 Square Sponges Replacement Kit 1-Year Supply**Veniassy**$18.99**1 rev1mo ago](https://www.amazon.com/dp/B0GW938RQ6) [**Cunina 8+8 Pack Cat Fountain Filter Replacement Fit for oneisall PW03 & PW04 3.5L/118oz Pet Fountains Fit for oneisall Cat Water Fountain Stainless Steel Keeping Pet Water Clean 8 Filters+8 Sponge**Cunina**$10.01**9 rev2mo ago](https://www.amazon.com/dp/B0GQH71G7C) [**24 Pack Filters for oneisall 10L/2.6Gal Stainless Steel Large Dog Water Fountain Ion Exchange Resin with Coconut Shell Activated Carbon Refills 12 Filters &12 Pre-Filter Sponges &12 Pump Sponges**Hoscabss**$15.97**0 rev2mo ago](https://www.amazon.com/dp/B0GY4VWX7N) [**Pet Water Fountain Filters Fit for Oneisall PW07SAU 10L Dog Water Fountain**Svrinlio**$21.23**3 rev3mo ago](https://www.amazon.com/dp/B0GV6ZVM74) [**16 Packs Dog Water Filter Replacement Cat Water Fountain Filter Compatible with oneisall 7L/230oz/1.8G Stainless Steel Dog Water Fountain**NautyPaws**$14.25**239 rev5mo ago](https://www.amazon.com/dp/B0GJYPGP31)
**~~View all new products →~~**
### **Trending**
90-day click momentum
[**24 Pack Filters for oneisall 10L/2.6Gal Stainless Steel Large Dog Water Fountain Ion Exchange Resin with Coconut Shell Activated Carbon Refills 12 Filters &12 Pre-Filter Sponges &12 Pump Sponges**Hoscabss**$15.97**0.0★**▲ 198%**](https://www.amazon.com/dp/B0GY4VWX7N) [**Pet Water Fountain Filters Fit for Oneisall PW07SAU 10L Dog Water Fountain**Svrinlio**$21.23**5.0★**▲ 197%**](https://www.amazon.com/dp/B0GV6ZVM74) [**24+24+24 Pack Replacement Filters for oneisall 7L/230oz/1.8G Dog Fountains 24 Filters + 24 Round Sponges + 24 Square Sponges Replacement Kit 1-Year Supply**Veniassy**$18.99**5.0★**▲ 197%**](https://www.amazon.com/dp/B0GW938RQ6) [**16 Packs Dog Water Filter Replacement Cat Water Fountain Filter Compatible with oneisall 7L/230oz/1.8G Stainless Steel Dog Water Fountain**NautyPaws**$14.25**4.4★**▲ 196%**](https://www.amazon.com/dp/B0GJYPGP31) [**Cunina 8+8 Pack Cat Fountain Filter Replacement Fit for oneisall PW03 & PW04 3.5L/118oz Pet Fountains Fit for oneisall Cat Water Fountain Stainless Steel Keeping Pet Water Clean 8 Filters+8 Sponge**Cunina**$10.01**4.5★**▲ 195%**](https://www.amazon.com/dp/B0GQH71G7C)
**~~View all trending →~~**
## **What buyers say about oneisall water fountain filters**
What buyers praise and complain about, mined from review topics.
### **What buyers love **
**Pet Friendly**14%
*“My doggies love this”*
**Filtration**14%
*“Filter works”*
**Size-Overall**10%
*“Fit perfect”*
**Ease Of Cleaning**9%
*“Clean water and easy to clean”*
**Water Flow**9%
*“Great water fountain”*
**Quality-Overall**7%
*“they are better than the originals”*
**Value For Money**7%
*“Super affordable”*
**Advertised Vs Actual Product**5%
*“Works as advertised”*
**Ease Of Use**4%
*“Easy to use”*
**Leak-Proof**2%
*“I love that it is refillable from the top”*
### **What buyers complain about **
**Filtration**13%
*“Very disappointed with the quality of the filter”*
**Size-Overall**11%
*“Smaller than the one that came with the unit”*
**Thickness**11%
*“Not as thick as originals”*
**Quality-Overall**8%
*“Very bad quality filter”*
**Durability**7%
*“Didnt even make it one year”*
**Ease Of Cleaning**6%
*“making a mess”*
**Value For Money**5%
*“Waste of money”*
**Water Flow**4%
*“The flowing water def does not keep that from happening”*
**Functionality-Overall**3%
*“Does not work”*
**Leak-Proof**2%
*“we realized we were out of filters”*
### **Top return reasons **
**Size-Overall**60%
**Filtration**14%
**Compatibility-Overall**6%
**Advertised Vs Actual Product**6%
**Functionality-Overall**2%
**Water Flow**2%
**Defective Material/Parts**2%
**Thickness**1%
**Value For Money**1%
**Escape Proof**1%
## **Common questions**
- **Is oneisall water fountain filters profitable to sell on Amazon United States?**
- The niche generates $56K/yr across 20 tracked products. 1 of 9 products launched in the last 360 days are still selling. 90-day search growth is +13.7%. Flapen's verdict: Worth a look (55/100).
- **How competitive is the oneisall water fountain filters niche?**
- 11 brands and 15 sellers compete. The top 5 products take 54% of clicks and top 5 brands hold 75% of demand.
- **What do buyers complain about in oneisall water fountain filters?**
- Top complaints mined from reviews: Filtration, Size-Overall, Thickness. The return rate is 1.3%.
- **What does it cost to enter the oneisall water fountain filters niche?**
- Listings span $9.26–$56.77; the average listing price is $17.26 (sweet spot $15–$100). The average incumbent carries 632 reviews — the moat a new listing must climb.
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