Is automatic pool filler profitable to sell on Amazon United States?

The niche generates $1.1M/yr across 15 tracked products. 7 of 8 products launched in the last 360 days are still selling. 90-day search growth is +79.8%. Flapen's verdict: Launch it (70/100).

How competitive is the automatic pool filler niche?

12 brands and 20 sellers compete. The top 5 products take 76% of clicks and top 5 brands hold 77% of demand.

What do buyers complain about in automatic pool filler?

Top complaints mined from reviews: Leak-Proof, Durability, Functionality-Overall. The return rate is 2.1%.

When does demand for automatic pool filler peak?

Demand peaks in Apr–May–Jun–Jul; the busiest month runs 3.2× the quietest.

What does it cost to enter the automatic pool filler niche?

Listings span $28.09–$88.46; the average listing price is $51.91 (sweet spot $15–$100). The average incumbent carries 458 reviews — the moat a new listing must climb.

automatic pool filler

Launch it

A $1.1M/yr market growing +79.8% this quarter with returns at 2.1% — clears our launch bar.

Price range

Incredible$28.09–$88.46

cheapest to priciest tracked listing — scored on the share inside $15–$100

Quality gap

Great4.0★

avg incumbent rating — lower means beatable quality

Avg price

Great$51.91

avg listing price — sweet spot $15–$100

Growth

Great+79.8%

90-day search growth — must beat 0% to launch

Market size

Great$1.1M

$1.1M/yr · 254K searches

Conversion

Great8.0%

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

Review moat

Great458.13

avg incumbent reviews — the moat a new listing must climb

Returns

Good2.1%

return rate — above 5% kills the launch gate

Brand share

Okay77%

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

Competition

Bad76%

top-5 click share — a locked-up shelf

Signals High Price

According to Flapen's Amazon United States niche tracking, automatic pool filler is a $1.1M/yr Amazon United States market (254K searches/yr). The top 5 brands hold 77% of demand. Demand peaks in Apr–May–Jun–Jul. Verdict: Launch it — 70/100.

Data updated Jul 24, 2026 · scored weekly · How we score niches

automatic pool filler market data

Units sold / yr: 20K–25K; avg 2,000–2,500/product
Revenue / yr: $1.0M–$1.3M; units × avg price
Conversion rate: 8.0%
Avg BSR: #1,459
Page quality: 0%
Prime: 100%
Sponsored: 100%
Out of stock: 22.3%
Avg brand age: 50 months
Avg seller age: 174 days

Competition & brand share

The top 5 products capture 76% of clicks — a locked-up shelf that new listings rarely crack.

Brands

12 falling

Sellers

Top-5 brand share

77%

Top 20: 100%

Top-5 click share

76%

Top 20: 100%

Open market

18%

Xmnbl35%
Fill-O-Matic16%
Rola-Chem12%
Fxsmgdy7%
uueeGo7%
Judkoir5%
Open — no brand owns it (6 brands, 18%)

Demand & seasonality

Weekly Amazon search volume, last 104 weeks — +79.8% search growth over the last 90 days.

Peak months: Apr, May, Jun, Jul · busiest ÷ quietest = 3.2×

Open Trend

Top automatic pool filler search terms

automatic pool filler51K/yr +83.3%6.9% conv.
pool auto fill34K/yr +70.1%6.2% conv.
pool water leveler auto fill32K/yr +33.3%6.4% conv.
pool filler22K/yr +81.0%7.7% conv.
auto pool filler20K/yr +105.7%6.2% conv.
pool water leveler11K/yr +123.6%4.1% conv.
pool autofill11K/yr +89.3%7.5% conv.
pool sentry water level control9K/yr +101.1%10.8% conv.
pool leveler auto filler9K/yr +53.8%6.7% conv.
pool water level sensor8K/yr +153.9%1.6% conv.

All search terms

Top automatic pool filler 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★)

All 15 tracked products in this niche — three views at once, no toggling.

Top sellers

by 90-day click share

2026 Upgrade Automatic Pool Filler Pool Water Leveler Auto Fill Pool Auto Fill Float Valve Water Leveler Control Sentry Swimming Pool Spa Pond Water Leveler filler automatic 5 Years Warranty

Xmnbl$45.984.0★792 rev

Fill-O-Matic Premium Automatic Swimming Pool Water Leveler

Fill-O-Matic$88.464.6★2,186 rev

New RolaChem Pool Sentry M3000 Automatic Pool Filler Automatic Water Leveler for Inground & AboveGround Pools Ponds & Spas Auto Pool Filler with Adjustable Float Valve

Rola-Chem$85.924.2★2,650 rev

2026 Upgrade Automatic Pool Filler - Water Leveler Auto Fill Valve for Inground Ground Pools Spa & Pond Adjustable Water Level Control Auto Pool Filler Pool Water Filler.10 Years Warranty

Fxsmgdy$45.964.1★74 rev

uueeGo Swimming Pool Water Leveler Automatic Pool Water Filler Automatically Maintain Water Levels Never Over Fills The Pool Suitable for In ground and Above Ground Pool Carbon Black

uueeGo$48.764.4★156 rev

Newest

by launch date

JANWISOL Pool Auto Filler

JANWISOL$46.5319 rev

3mo ago

LAJBZ Pool Water Leveler Auto Fill

LAJBZ$45.9219 rev

3mo ago

NAMEFOR Pool Water Leveler Automatic Pool Filler Float Valve Pool Sentry

NAMEFOR$50.075 rev

4mo ago

Judkoir Automatic Pool Filler Metal Construction with Anti-Corrosion Coating 2 to 9 Inch Visual Water Level Adjustment Pool Water Leveler Auto Fill Pool Stuff Swimming Accessories

Judkoir$45.6825 rev

4mo ago

Judkoir Automatic Pool Filler Metal Construction with Anti-Corrosion Coating 2 to 9 Inch Visual Water Level Adjustment Pool Water Leveler Auto Fill Pool Stuff Swimming Accessories

Judkoir$50.6116 rev

5mo ago

What buyers say about automatic pool filler

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

What buyers love

Assembly/Installation22%

“Easy Install”

Quality-Overall12%

“It is very well made”

Advertised Vs Actual Product10%

“As advertised”

Ease Of Use10%

“Convenient, if you can place it well”

Value For Money8%

“Worth buying”

Durability5%

“Reliable and durable”

Design-Overall4%

“it appears to be well constructed”

Leak-Proof3%

“No leaks”

Water Resistance3%

“Reliable in maintaining water level”

Strength2%

“it has proven stable even when we've had immense winds that have blown other items around our yard”

What buyers complain about

Leak-Proof14%

“Leaked”

Durability10%

“Won't last”

Functionality-Overall9%

“Doesnt work like its supposed to function”

Quality-Overall6%

“This is a very cheaply made product”

Assembly/Installation5%

“Difficult to assemble”

Water Resistance4%

“Always losing water”

Value For Money4%

“For what I consider a rather cheap device”

Material Quality3%

“Cheap Materials”

Jamming/Clogging3%

“mine got stuck open twice”

Design-Overall2%

“the hose design is frustrating”

Top return reasons

Leak-Proof26%

Functionality-Overall18%

Defective Material/Parts8%

Water Resistance8%

Size-Overall7%

Advertised Vs Actual Product4%

Value For Money3%

Quality-Overall3%

Product Condition3%

Connectivity-Overall2%

Common questions

Is automatic pool filler profitable to sell on Amazon United States?: The niche generates $1.1M/yr across 15 tracked products. 7 of 8 products launched in the last 360 days are still selling. 90-day search growth is +79.8%. Flapen's verdict: Launch it (70/100).
How competitive is the automatic pool filler niche?: 12 brands and 20 sellers compete. The top 5 products take 76% of clicks and top 5 brands hold 77% of demand.
What do buyers complain about in automatic pool filler?: Top complaints mined from reviews: Leak-Proof, Durability, Functionality-Overall. The return rate is 2.1%.
When does demand for automatic pool filler peak?: Demand peaks in Apr–May–Jun–Jul; the busiest month runs 3.2× the quietest.
What does it cost to enter the automatic pool filler niche?: Listings span $28.09–$88.46; the average listing price is $51.91 (sweet spot $15–$100). The average incumbent carries 458 reviews — the moat a new listing must climb.