---
title: "Pool Auto Fill Float Valve — $147K/yr Amazon US Niche (2026) - Flapen"
canonical_url: "https://flapen.com/research/us/patio-lawn-garden/pool-auto-fill-float-valve"
last_updated: "2026-08-05T21:17:21.991Z"
locale: en
meta:
description: "Niche score 61/100 · $147K/yr market. A failed launch gate (market size, growth, or returns) keeps it on the watch list. Data updated Jul 2026."
"og:description": "Niche score 61/100 · $147K/yr market. A failed launch gate (market size, growth, or returns) keeps it on the watch list. Data updated Jul 2026."
"og:title": "Pool Auto Fill Float Valve — $147K/yr Amazon US Niche (2026) - Flapen"
---
# **pool auto fill float valve**
**Worth a look**
Shows a sweet-spot price point ($36.67 avg), but a failed launch gate (market size, growth, or returns) keeps it on the watch list.
Market size 32Growth 66Conversion 70Competition 35Returns 60Price range 90Avg price 95Brand share 68Review moat 78Quality gap 82
**Avg price**
**Incredible****$36.67**
avg listing price — sweet spot $15–$100
**Price range**
**Great****$9.74–$88.46**
cheapest to priciest tracked listing — scored on the share inside $15–$100
**Quality gap**
**Great****4.2★**
avg incumbent rating — lower means beatable quality
**Review moat**
**Great****448.43**
avg incumbent reviews — the moat a new listing must climb
**Conversion**
**Good****6.5%**
search→purchase rate — share of searches ending in a sale
**Brand share**
**Good****64%**
top-5 brand share — brands hold most of the demand
**Growth**
**Good****+45.5%**
90-day search growth — must beat 0% to launch
**Returns**
**Good****2.6%**
return rate — above 5% kills the launch gate
**Competition**
**Okay****64%**
top-5 click share — leaders hold, buyers still browse
**Market size**
**Okay****$147K**
$147K/yr · 62K searches
**Signals**[** No Dominant Brand**](https://flapen.com/research/niches?market=us&signal=no_dominant_brand "Top brand's click share < 20%")
According to Flapen's Amazon United States niche tracking, pool auto fill float valve is a $147K/yr Amazon United States market (62K searches/yr). The top 5 brands hold 64% of demand. Demand peaks in May–Jun–Jul. Verdict: Worth a look — 61/100.
Data updated Jul 24, 2026 · scored weekly · [~~How we score niches ~~](https://flapen.com/research/methodology)
## **pool auto fill float valve market data**
- **Units sold / yr**
- **4K–5K**
- avg 100–250/product
- **Revenue / yr**
- **$147K–$183K**
- units × avg price
- **Conversion rate**
- **6.5%**
- **Avg BSR**
- **#1,072**
- **Page quality**
- **0%**
- **Prime**
- **90%**
- **Sponsored**
- **71%**
- **Out of stock**
- **6.3%**
- **Avg brand age**
- **50 months**
- **Avg seller age**
- **175 days**
## **Competition & brand share**
The top 5 products take 64% of clicks — established leaders, but buyers still shop beyond them.
**Brands**
**20 **▲rising
**Sellers**
**90**
**Top-5 brand share**
**64%**
Top 20: 100%
**Top-5 click share**
**64%**
Top 20: 99%
**Open market**
**31%**
- Xmnbl18% - Aquatonics16% - Swimables15% - Float-Tec & Control Devices10% - shawmin5% - Fill-O-Matic5%
## **Demand & seasonality**
Weekly Amazon search volume, last 104 weeks — +45.5% search growth over the last 90 days.
2K1KSpike '24Black Friday '24Spike '25Spike '26 seasonSepDecMarJunAugNovMarMay
Peak months: May, Jun, Jul · busiest ÷ quietest = 2.7×
[**Open Trend **](https://flapen.com/research/us/patio-lawn-garden/pool-auto-fill-float-valve/trend)
## **Top pool auto fill float valve search terms**
- **pool auto fill float valve**21K/yr+33.5%6.5% conv. - **pool filler float valve**13K/yr+61.3%7.0% conv. - **pool float valve**6K/yr+39.0%4.9% conv. - **pool auto fill valve**5K/yr+62.8%3.7% conv. - **pool autofill float valve**5K/yr+73.1%6.8% conv. - **pool fill valve**4K/yr+72.9%3.4% conv. - **3/8 float valve**4K/yr-1.9%4.2% conv. - **pool water level float**3K/yr+65.9%4.4% conv. [**All search terms **](https://flapen.com/research/us/patio-lawn-garden/pool-auto-fill-float-valve/search-terms)
## **Top pool auto fill float valve 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%5%$7K10%$15K15%$22K20%$29K1101001K10K Reviews — right = deep review moatMarket share (90d) ≈ est. sales
Beatable (≤4.3★) Contested Strong incumbent (>4.7★)
All 21 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**3/8 Water Float Valve Heavy-Duty 125 PSI Water Level Controller - Easy Wingnut Adjustment Float Valve Adjustable Flow (2.25 GPM) for In-Ground Pools & Auto-Fill Systems**Aquatonics**$29.68**4.4★98 rev](https://www.amazon.com/dp/B0F74CRR77) [3**Swimables 3/8 and 1/2 Pool Auto Fill Float Valve Replacement | Includes Adapter From 3/8 Inch to 1/2 Inch | Compatible with Most Water Float Valve For Water Tank and Pool Water Leveler Auto Fill**Swimables**$16.77**4.3★47 rev](https://www.amazon.com/dp/B0DY5H8MJQ) [4**Float Tec Control Devices T26 EZ Adjustment Brass Float Valve 3/8 NPT Male Threads 3 Arm Autofill Water Filler Leveler Pools Spas Water Tanks Water Foutain Fit 6 Canister**Float-Tec & Control Devices**$40.75**4.3★553 rev](https://www.amazon.com/dp/B08271SBWK) [5**Pool Auto Fill Float Valve 3/8 Brass Water Level Valve for Pool & Pond**shawmin**$17.60**4.2★19 rev](https://www.amazon.com/dp/B0GHSBW17J)
**~~View all top sellers →~~**
### **Newest**
by launch date
[**JANWISOL Pool Auto Filler**JANWISOL**$46.53**19 rev3mo ago](https://www.amazon.com/dp/B0GXC1VXP3) [**NAMEFOR Pool Water Leveler Automatic Pool Filler Float Valve Pool Sentry**NAMEFOR**$50.07**5 rev4mo ago](https://www.amazon.com/dp/B0H36CVR7Y) [**Ereto Automatic Pool Filler - Universal Pool Water Leveler Auto Fill with Adjustable Float Valve for In-Ground & Above Ground Pools Ponds Spas (Gray)**Ereto**$28.09**43 rev5mo ago](https://www.amazon.com/dp/B0GL27JHF4) [**NAMEFOR Metal Automatic Pool Filler Water Leveler Anti-Corrosion Coating 29 Inch Adjustable Float Valve Easy Install Fits Inground & Above-Ground Pools Garden Ponds**NAMEFOR**$61.50**14 rev5mo ago](https://www.amazon.com/dp/B0GK8NHBRB) [**Pool Auto Fill Float Valve 3/8 Brass Water Level Valve for Pool & Pond**shawmin**$17.60**19 rev6mo ago](https://www.amazon.com/dp/B0GHSBW17J)
**~~View all new products →~~**
### **Trending**
90-day click momentum
[**NAMEFOR Pool Water Leveler Automatic Pool Filler Float Valve Pool Sentry**NAMEFOR**$50.07**4.2★**▲ 157%**](https://www.amazon.com/dp/B0H36CVR7Y) [**JANWISOL Pool Auto Filler**JANWISOL**$46.53**3.6★**▲ 156%**](https://www.amazon.com/dp/B0GXC1VXP3) [**NAMEFOR Metal Automatic Pool Filler Water Leveler Anti-Corrosion Coating 29 Inch Adjustable Float Valve Easy Install Fits Inground & Above-Ground Pools Garden Ponds**NAMEFOR**$61.50**3.2★**▲ 138%**](https://www.amazon.com/dp/B0GK8NHBRB) [**Ereto Automatic Pool Filler - Universal Pool Water Leveler Auto Fill with Adjustable Float Valve for In-Ground & Above Ground Pools Ponds Spas (Gray)**Ereto**$28.09**3.6★**▲ 111%**](https://www.amazon.com/dp/B0GL27JHF4) [**Pool Auto Fill Float Valve 3/8 Brass Water Level Valve for Pool & Pond**shawmin**$17.60**4.2★**▲ 96%**](https://www.amazon.com/dp/B0GHSBW17J)
**~~View all trending →~~**
## **What buyers say about pool auto fill float valve**
What buyers praise and complain about, mined from review topics.
### **What buyers love **
**Assembly/Installation**18%
*“Easy install”*
**Quality-Overall**14%
*“The product is top notch”*
**Advertised Vs Actual Product**12%
*“As advertised”*
**Ease Of Use**7%
*“is easily removeable as well”*
**Value For Money**6%
*“Good value”*
**Durability**5%
*“It is reliable so far”*
**Design-Overall**4%
*“Good construction”*
**Leak-Proof**3%
*“no drips at all”*
**Size-Overall**3%
*“Good fit”*
**Efficiency**3%
*“Works well on spa pump”*
### **What buyers complain about **
**Leak-Proof**13%
*“it was leaking”*
**Durability**12%
*“Won't last”*
**Functionality-Overall**9%
*“Doesnt work like its supposed to function”*
**Assembly/Installation**6%
*“Difficult to assemble”*
**Quality-Overall**5%
*“Garbage”*
**Material Quality**4%
*“Cheap Materials”*
**Value For Money**4%
*“I get that it isn't cheap”*
**Water Resistance**3%
*“floods the pool”*
**Ease Of Use**3%
*“doesnt feel as convenient as expected”*
**Jamming/Clogging**2%
*“mine got stuck open twice”*
### **Top return reasons **
**Size-Overall**43%
**Leak-Proof**11%
**Functionality-Overall**10%
**Advertised Vs Actual Product**6%
**Defective Material/Parts**6%
**Water Resistance**4%
**Quality-Overall**2%
**Value For Money**2%
**Adjustability/Rotatability/Reclining**2%
**Product Condition**2%
## **Common questions**
- **Is pool auto fill float valve profitable to sell on Amazon United States?**
- The niche generates $147K/yr across 21 tracked products. 5 of 6 products launched in the last 360 days are still selling. 90-day search growth is +45.5%. Flapen's verdict: Worth a look (61/100).
- **How competitive is the pool auto fill float valve niche?**
- 20 brands and 90 sellers compete. The top 5 products take 64% of clicks and top 5 brands hold 64% of demand.
- **What do buyers complain about in pool auto fill float valve?**
- Top complaints mined from reviews: Leak-Proof, Durability, Functionality-Overall. The return rate is 2.6%.
- **When does demand for pool auto fill float valve peak?**
- Demand peaks in May–Jun–Jul; the busiest month runs 2.7× the quietest.
- **What does it cost to enter the pool auto fill float valve niche?**
- Listings span $9.74–$88.46; the average listing price is $36.67 (sweet spot $15–$100). The average incumbent carries 448 reviews — the moat a new listing must climb.
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