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.

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

Incredible$5.0M

$5.0M/yr · 2.4M searches

Conversion

Incredible13.0%

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

Returns

Incredible0.8%

return rate — above 6% kills the launch gate

Avg price

Great$15.82

avg listing price — sweet spot $15–$100

Brand share

Good60%

top-5 brand share — brands hold most of the demand

Competition

Good53%

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

Okay3,737.79

avg incumbent reviews — the moat a new listing must climb

Quality gap

Okay4.6★

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

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

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.

No pronounced peak months · busiest ÷ quietest = 1.1×

Open 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.

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

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$18.294.3★6,190 rev

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$16.824.8★9,034 rev

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$19.904.7★2,201 rev

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$18.534.6★2,198 rev

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$11.964.7★5,557 rev

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$15.0825 rev

3mo ago

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$18.83171 rev

6mo ago

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$18.32346 rev

11mo ago

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$14.99923 rev

11mo ago

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$19.74687 rev

1y ago

Reviews

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

What buyers love

Filtration22%

“Filters work great”

Value For Money14%

“very affordable”

Size-Overall14%

“Exact fit”

Quality-Overall10%

“Good quality, easy to use, keeps water fresh”

Advertised Vs Actual Product9%

“As advertised”

Pet Friendly7%

“The cat approves”

Ease Of Use5%

“Ease of use”

Ease Of Cleaning5%

“Great for cleaning water fountain”

Water Flow4%

“Helps keep the water clean”

Durability2%

“very durable”

What buyers complain about

Size-Overall24%

“Too small”

Filtration22%

“Filter does not fit”

Quality-Overall9%

“Crappy quality”

Value For Money6%

“just a bit pricey”

Durability4%

“it broke after the second month”

Water Flow4%

“Slows fountain”

Advertised Vs Actual Product3%

“Pictures are deceiving”

Thickness2%

“the small black ones are too thick”

Ease Of Cleaning2%

“Cant properly clean filter”

Functionality-Overall1%

“Stopped working:/”

Top return reasons

Size-Overall64%

Filtration16%

Compatibility-Overall10%

Advertised Vs Actual Product3%

Value For Money1%

Defective Material/Parts1%

Shape/Style1%

Functionality-Overall1%

Water Flow1%

Quality-Overall0%

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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cat water fountain filter

Market data

Competition

Demand & seasonality

Product shelf

Top sellers

Newest

Trending

Reviews

What buyers love

What buyers complain about

Top return reasons

Common questions

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