Is pool sentry water level control profitable to sell on Amazon United States?

The niche generates $105K/yr across 4 tracked products. 1 of 1 products launched in the last 360 days are still selling. 90-day search growth is +87.1%. Flapen's verdict: Worth a look (53/100).

How competitive is the pool sentry water level control niche?

4 brands and 12 sellers compete. The top 5 products take 100% of clicks and top 5 brands hold 100% of demand.

What do buyers complain about in pool sentry water level control?

Top complaints mined from reviews: Leak-Proof, Durability, Functionality-Overall. The return rate is 2.2%.

When does demand for pool sentry water level control peak?

Demand peaks in Apr–May–Jun–Jul; the busiest month runs 2.8× the quietest.

What does it cost to enter the pool sentry water level control niche?

Listings span $45.96–$88.46; the average listing price is $66.58 (sweet spot $15–$100). The average incumbent carries 1,426 reviews — the moat a new listing must climb.

pool sentry water level control

Worth a look

Shows sweet-spot pricing room ($45.96–$88.46), but a concentrated shelf (top 5 take 100% of clicks) keeps it on the watch list.

Price range

Incredible$45.96–$88.46

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

Conversion

Great11.3%

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

Avg price

Great$66.58

avg listing price — sweet spot $15–$100

Growth

Great+87.1%

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

Quality gap

Great4.2★

avg incumbent rating — lower means beatable quality

Returns

Good2.2%

return rate — above 5% kills the launch gate

Review moat

Good1,425.5

avg incumbent reviews — the moat a new listing must climb

Market size

Okay$105K

$105K/yr · 14K searches

Competition

Bad100%

top-5 click share — a locked-up shelf

Brand share

Bad100%

top-5 brand share — brand-locked demand

Signals High Price

According to Flapen's Amazon United States niche tracking, pool sentry water level control is a $105K/yr Amazon United States market (14K searches/yr). The top 5 brands hold 100% of demand. Demand peaks in Apr–May–Jun–Jul. Verdict: Worth a look — 53/100.

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

pool sentry water level control market data

Units sold / yr: 2K–2K; avg 250–500/product
Revenue / yr: $100K–$133K; units × avg price
Conversion rate: 11.3%
Avg BSR: #92
Page quality: 0%
Prime: 100%
Sponsored: 100%
Out of stock: 0.0%
Avg brand age: 49 months
Avg seller age: 186 days

Competition & brand share

The top 5 products capture 100% of clicks — a locked-up shelf that new listings rarely crack.

Brands

4 falling

Sellers

Top-5 brand share

100%

Top 20: 100%

Top-5 click share

100%

Top 20: 100%

Open market

Rola-Chem54%
Xmnbl36%
Fxsmgdy5%
Fill-O-Matic4%

Demand & seasonality

Weekly Amazon search volume, last 104 weeks — +87.1% search growth over the last 90 days.

Peak months: Apr, May, Jun, Jul · busiest ÷ quietest = 2.8×

Open Trend

Top pool sentry water level control 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 4 tracked products in this niche — three views at once, no toggling.

Top sellers

by 90-day click share

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 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

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

Fill-O-Matic Premium Automatic Swimming Pool Water Leveler

Fill-O-Matic$88.464.6★2,186 rev

Newest

by launch date

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$45.9674 rev

7mo ago

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$45.98792 rev

2y ago

Fill-O-Matic Premium Automatic Swimming Pool Water Leveler

Fill-O-Matic$88.462,186 rev

8y ago

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$85.922,650 rev

18y ago

What buyers say about pool sentry water level control

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

What buyers love

Assembly/Installation22%

“Easy install”

Quality-Overall14%

“The product is top notch”

Advertised Vs Actual Product13%

“As advertised”

Ease Of Use9%

“Easy to sit-up and use”

Design-Overall6%

“Good construction”

Value For Money6%

“Worth it”

Durability5%

“Reliable and durable”

Leak-Proof3%

“no drips at all”

Strength3%

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

Water Resistance2%

“Reliable in maintaining water level”

What buyers complain about

Leak-Proof14%

“it was leaking”

Durability13%

“Not only will it break”

Functionality-Overall10%

“Doesnt work like its supposed to function”

Value For Money6%

“I get that it isn't cheap”

Assembly/Installation6%

“A little tricky to set up”

Quality-Overall5%

“Garbage”

Water Resistance4%

“floods the pool”

Jamming/Clogging3%

“The float valve often gets stuck”

Material Quality2%

“Cheap Materials”

Maintenance And Repair2%

“Requires maintenance that is hard to do”

Top return reasons

Leak-Proof23%

Functionality-Overall20%

Size-Overall9%

Defective Material/Parts8%

Water Resistance8%

Advertised Vs Actual Product5%

Product Condition3%

Value For Money3%

Quality-Overall3%

Connectivity-Overall2%

Common questions

Is pool sentry water level control profitable to sell on Amazon United States?: The niche generates $105K/yr across 4 tracked products. 1 of 1 products launched in the last 360 days are still selling. 90-day search growth is +87.1%. Flapen's verdict: Worth a look (53/100).
How competitive is the pool sentry water level control niche?: 4 brands and 12 sellers compete. The top 5 products take 100% of clicks and top 5 brands hold 100% of demand.
What do buyers complain about in pool sentry water level control?: Top complaints mined from reviews: Leak-Proof, Durability, Functionality-Overall. The return rate is 2.2%.
When does demand for pool sentry water level control peak?: Demand peaks in Apr–May–Jun–Jul; the busiest month runs 2.8× the quietest.
What does it cost to enter the pool sentry water level control niche?: Listings span $45.96–$88.46; the average listing price is $66.58 (sweet spot $15–$100). The average incumbent carries 1,426 reviews — the moat a new listing must climb.