---
title: "Automatic Pool Filler — $1.1M/yr Amazon US Niche (2026) - Flapen"
canonical_url: "https://flapen.com/research/us/patio-lawn-garden/automatic-pool-filler"
last_updated: "2026-08-07T21:58:25.546Z"
locale: en
meta:
description: "Niche score 70/100 · $1.1M/yr market · 254K searches/yr · $51.91 avg price. Clears our launch bar. Data updated Jul 2026."
"og:description": "Niche score 70/100 · $1.1M/yr market · 254K searches/yr · $51.91 avg price. Clears our launch bar. Data updated Jul 2026."
"og:title": "Automatic Pool Filler — $1.1M/yr Amazon US Niche (2026) - Flapen"
---
# **automatic pool filler**
**Launch it**
A $1.1M/yr market growing +79.8% this quarter with returns at 2.1% — clears our launch bar.
Market size 79Growth 83Conversion 79Competition 20Returns 74Price range 95Avg price 92Brand share 46Review moat 77Quality gap 94
**Price range**
**Incredible****$28.09–$88.46**
cheapest to priciest tracked listing — scored on the share inside $15–$100
**Quality gap**
**Great****4.0★**
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**
**Great****8.0%**
search→purchase rate — share of searches ending in a sale
**Review moat**
**Great****458.13**
avg incumbent reviews — the moat a new listing must climb
**Returns**
**Good****2.1%**
return rate — above 5% kills the launch gate
**Brand share**
**Okay****77%**
top-5 brand share — brands hold most of the demand
**Competition**
**Bad****76%**
top-5 click share — a locked-up shelf
**Signals**[** High Price**](https://flapen.com/research/niches?market=us&signal=high_price "Avg price > $50")
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 ~~](https://flapen.com/research/methodology)
## **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**
**20**
**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.
9K7KSpike '25Spike '26 seasonSepDecMarJunAugNovMarMay
Peak months: Apr, May, Jun, Jul · busiest ÷ quietest = 3.2×
[**Open Trend **](https://flapen.com/research/us/patio-lawn-garden/automatic-pool-filler/trend)
## **Top automatic pool filler search terms**
- **automatic pool filler**51K/yr+83.3%6.9% conv. - **pool auto fill**34K/yr+70.1%6.2% conv. - **pool water leveler auto fill**32K/yr+33.3%6.4% conv. - **pool filler**22K/yr+81.0%7.7% conv. - **auto pool filler**20K/yr+105.7%6.2% conv. - **pool water leveler**11K/yr+123.6%4.1% conv. - **pool autofill**11K/yr+89.3%7.5% conv. - **pool sentry water level control**9K/yr+101.1%10.8% conv. - **pool leveler auto filler**9K/yr+53.8%6.7% conv. - **pool water level sensor**8K/yr+153.9%1.6% conv. [**All search terms **](https://flapen.com/research/us/patio-lawn-garden/automatic-pool-filler/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.
0%10%$105K20%$211K30%$316K40%$422K1101001K10K Reviews — right = deep review moatMarket share (90d) ≈ est. sales
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
[1**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**$45.98**4.0★792 rev](https://www.amazon.com/dp/B0D5R4WPGM) [2**Fill-O-Matic Premium Automatic Swimming Pool Water Leveler**Fill-O-Matic**$88.46**4.6★2,186 rev](https://www.amazon.com/dp/B07B2NQG2D) [3**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**$85.92**4.2★2,650 rev](https://www.amazon.com/dp/B003AXMD90) [4**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**$45.96**4.1★74 rev](https://www.amazon.com/dp/B0GCDKT7N5) [5**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**$48.76**4.4★156 rev](https://www.amazon.com/dp/B0D2LFQ3ZN)
**~~View all top sellers →~~**
### **Newest**
by launch date
[**JANWISOL Pool Auto Filler**JANWISOL**$46.53**19 rev3mo ago](https://www.amazon.com/dp/B0GXC1VXP3) [**LAJBZ Pool Water Leveler Auto Fill**LAJBZ**$45.92**19 rev3mo ago](https://www.amazon.com/dp/B0GV2VT4T9) [**NAMEFOR Pool Water Leveler Automatic Pool Filler Float Valve Pool Sentry**NAMEFOR**$50.07**5 rev4mo ago](https://www.amazon.com/dp/B0H36CVR7Y) [**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**$45.68**25 rev4mo ago](https://www.amazon.com/dp/B0H2995FCP) [**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**$50.61**16 rev5mo ago](https://www.amazon.com/dp/B0GYYL6LMF)
**~~View all new products →~~**
### **Trending**
90-day click momentum
[**JANWISOL Pool Auto Filler**JANWISOL**$46.53**3.6★**▲ 98%**](https://www.amazon.com/dp/B0GXC1VXP3) [**NAMEFOR Pool Water Leveler Automatic Pool Filler Float Valve Pool Sentry**NAMEFOR**$50.07**4.2★**▲ 98%**](https://www.amazon.com/dp/B0H36CVR7Y) [**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**$50.61**4.2★**▲ 97%**](https://www.amazon.com/dp/B0GYYL6LMF) [**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**$45.68**3.9★**▲ 97%**](https://www.amazon.com/dp/B0H2995FCP) [**GANDONE Pool Water Leveler Auto Fill Automatic Pool Filler for Water Level Control Auto Refill Kit for Swimming Pools SPA Pond (Grey White)**GANDONE**$28.31**3.8★**▲ 75%**](https://www.amazon.com/dp/B0D2QRDNHW)
**~~View all trending →~~**
## **What buyers say about automatic pool filler**
What buyers praise and complain about, mined from review topics.
### **What buyers love **
**Assembly/Installation**22%
*“Easy Install”*
**Quality-Overall**12%
*“It is very well made”*
**Advertised Vs Actual Product**10%
*“As advertised”*
**Ease Of Use**10%
*“Convenient, if you can place it well”*
**Value For Money**8%
*“Worth buying”*
**Durability**5%
*“Reliable and durable”*
**Design-Overall**4%
*“it appears to be well constructed”*
**Leak-Proof**3%
*“No leaks”*
**Water Resistance**3%
*“Reliable in maintaining water level”*
**Strength**2%
*“it has proven stable even when we've had immense winds that have blown other items around our yard”*
### **What buyers complain about **
**Leak-Proof**14%
*“Leaked”*
**Durability**10%
*“Won't last”*
**Functionality-Overall**9%
*“Doesnt work like its supposed to function”*
**Quality-Overall**6%
*“This is a very cheaply made product”*
**Assembly/Installation**5%
*“Difficult to assemble”*
**Water Resistance**4%
*“Always losing water”*
**Value For Money**4%
*“For what I consider a rather cheap device”*
**Material Quality**3%
*“Cheap Materials”*
**Jamming/Clogging**3%
*“mine got stuck open twice”*
**Design-Overall**2%
*“the hose design is frustrating”*
### **Top return reasons **
**Leak-Proof**26%
**Functionality-Overall**18%
**Defective Material/Parts**8%
**Water Resistance**8%
**Size-Overall**7%
**Advertised Vs Actual Product**4%
**Value For Money**3%
**Quality-Overall**3%
**Product Condition**3%
**Connectivity-Overall**2%
## **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.
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