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.

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.

Conversion

Incredible14.7%

search→purchase rate — share of searches ending in a sale

Returns

Great1.3%

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

Good632

avg incumbent reviews — the moat a new listing must climb

Competition

Good54%

top-5 click share — leaders hold, buyers still browse

Brand share

Good75%

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

Okay4.5★

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

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

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.

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

oneisall 8 Set Filters for PWF-002 Dog Fountain

oneisall$16.974.4★5,128 rev

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$14.834.5★130 rev

16+16 Pack Replacement Filters for Oneisall PW04 3.5L Wireless Cat Water Fountain Includes 16 Filters & 16 Sponges

HOETEK$18.144.5★77 rev

oneisall 8Set Filters for for PW07SAU 10L/2.64Gal Stainless Steel Dog Water Fountain

oneisall$16.884.6★121 rev

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$17.244.1★16 rev

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$18.991 rev

1mo ago

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$10.019 rev

2mo ago

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$15.970 rev

2mo ago

Pet Water Fountain Filters Fit for Oneisall PW07SAU 10L Dog Water Fountain

Svrinlio$21.233 rev

3mo ago

16 Packs Dog Water Filter Replacement Cat Water Fountain Filter Compatible with oneisall 7L/230oz/1.8G Stainless Steel Dog Water Fountain

NautyPaws$14.25239 rev

5mo ago

What buyers say about oneisall water fountain filters

What buyers praise and complain about, mined from review topics.

What buyers love

Pet Friendly14%

“My doggies love this”

Filtration14%

“Filter works”

Size-Overall10%

“Fit perfect”

Ease Of Cleaning9%

“Clean water and easy to clean”

Water Flow9%

“Great water fountain”

Quality-Overall7%

“they are better than the originals”

Value For Money7%

“Super affordable”

Advertised Vs Actual Product5%

“Works as advertised”

Ease Of Use4%

“Easy to use”

Leak-Proof2%

“I love that it is refillable from the top”

What buyers complain about

Filtration13%

“Very disappointed with the quality of the filter”

Size-Overall11%

“Smaller than the one that came with the unit”

Thickness11%

“Not as thick as originals”

Quality-Overall8%

“Very bad quality filter”

Durability7%

“Didnt even make it one year”

Ease Of Cleaning6%

“making a mess”

Value For Money5%

“Waste of money”

Water Flow4%

“The flowing water def does not keep that from happening”

Functionality-Overall3%

“Does not work”

Leak-Proof2%

“we realized we were out of filters”

Top return reasons

Size-Overall60%

Filtration14%

Compatibility-Overall6%

Advertised Vs Actual Product6%

Functionality-Overall2%

Water Flow2%

Defective Material/Parts2%

Thickness1%

Value For Money1%

Escape Proof1%

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.