---
title: "Polaris 3900 — $436K/yr Amazon US Niche (2026) - Flapen"
canonical_url: "https://flapen.com/research/us/patio-lawn-garden/polaris-3900"
last_updated: "2026-08-10T22:21:56.765Z"
locale: en
meta:
description: "Niche score 49/100 · $436K/yr market · 9K searches/yr · $649.36 avg price. Doesn't clear our bar today. Data updated Jul 2026."
"og:description": "Niche score 49/100 · $436K/yr market · 9K searches/yr · $649.36 avg price. Doesn't clear our bar today. Data updated Jul 2026."
"og:title": "Polaris 3900 — $436K/yr Amazon US Niche (2026) - Flapen"
---
# **polaris 3900**
**Skip it**
A concentrated shelf (top 5 take 100% of clicks) — this niche doesn't clear our bar today.
Market size 57Growth 76Conversion 77Competition 0Returns 97Price range 0Avg price 0Brand share 0Review moat 50Quality gap 95
**Returns**
**Incredible****0.6%**
return rate — above 5% kills the launch gate
**Quality gap**
**Incredible****4.0★**
avg incumbent rating — lower means beatable quality
**Conversion**
**Great****7.6%**
search→purchase rate — share of searches ending in a sale
**Growth**
**Great****+62.2%**
90-day search growth — must beat 0% to launch
**Market size**
**Good****$436K**
$436K/yr · 9K searches
**Review moat**
**Okay****1,515.5**
avg incumbent reviews — the moat a new listing must climb
**Competition**
**Bad****100%**
top-5 click share — a locked-up shelf
**Brand share**
**Bad****100%**
top-5 brand share — brand-locked demand
**Avg price**
**Bad****$649.36**
avg listing price — sweet spot $15–$100
**Price range**
**Bad****$181.38–$937.12**
cheapest to priciest tracked listing — scored on the share inside $15–$100
**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, polaris 3900 is a $436K/yr Amazon United States market (9K searches/yr). The top 5 brands hold 100% of demand. Demand peaks in Apr–May–Jun. Verdict: Skip it — 49/100.
Data updated Jul 24, 2026 · scored weekly · [~~How we score niches ~~](https://flapen.com/research/methodology)
## **polaris 3900 market data**
- **Units sold / yr**
- **250–500**
- avg 0–100/product
- **Revenue / yr**
- **$162K–$325K**
- units × avg price
- **Conversion rate**
- **7.6%**
- **Avg BSR**
- **#78**
- **Page quality**
- **0%**
- **Prime**
- **100%**
- **Sponsored**
- **100%**
- **Out of stock**
- **0.0%**
- **Avg brand age**
- **50 months**
- **Avg seller age**
- **196 days**
## **Competition & brand share**
The top 5 products capture 100% of clicks — a locked-up shelf that new listings rarely crack.
**Brands**
**2 **▼falling
**Sellers**
**24**
**Top-5 brand share**
**100%**
Top 20: 100%
**Top-5 click share**
**100%**
Top 20: 100%
**Open market**
**0%**
- Polaris88% - E-cowlboy12%
## **Demand & seasonality**
Weekly Amazon search volume, last 104 weeks — +62.2% search growth over the last 90 days.
500300Spike '24Black Friday '24Spike '25Spike '26 seasonSepDecMarJunAugNovMarMay
Peak months: Apr, May, Jun · busiest ÷ quietest = 3.0×
[**Open Trend **](https://flapen.com/research/us/patio-lawn-garden/polaris-3900/trend)
## **Top polaris 3900 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%20%$87K40%$174K60%$262K80%$349K101001K10K Reviews — right = deep review moatMarket share (90d) ≈ est. sales
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
[1**Polaris Vac-Sweep 3900 Sport Pressure Side Pool Cleaner**Polaris**$914.58**4.0★534 rev](https://www.amazon.com/dp/B001TZ45GU) [2**Replacement for Zodiac Polaris R0543200 3900 Sport Robotic Swimming Pool Cleaner Rebuild Kit Tune-Up Kit Accessory Also for P39 Sport Pressure Inground Pool Cleaner Upgraded Silver**E-cowlboy**$181.38**4.0★47 rev](https://www.amazon.com/dp/B0D73BD35V) [3**Polaris Vac-Sweep P39 Pressure Inground Pool Cleaner Triple Jet Powered with a Dual Chamber SuperBag for Debris**Polaris**$937.12**3.6★72 rev](https://www.amazon.com/dp/B01GWSJMQ6) [4**Polaris Vac-Sweep 280 Pressure-Side In-ground Pool Cleaner Double Venturi Jet Powered 31ft of Hose with an All Purpose Debris Bag**Polaris**$564.35**4.4★5,409 rev](https://www.amazon.com/dp/B002HRET6A)
### **Newest**
by launch date
[**Replacement for Zodiac Polaris R0543200 3900 Sport Robotic Swimming Pool Cleaner Rebuild Kit Tune-Up Kit Accessory Also for P39 Sport Pressure Inground Pool Cleaner Upgraded Silver**E-cowlboy**$181.38**47 rev2y ago](https://www.amazon.com/dp/B0D73BD35V) [**Polaris Vac-Sweep P39 Pressure Inground Pool Cleaner Triple Jet Powered with a Dual Chamber SuperBag for Debris**Polaris**$937.12**72 rev10y ago](https://www.amazon.com/dp/B01GWSJMQ6) [**Polaris Vac-Sweep 280 Pressure-Side In-ground Pool Cleaner Double Venturi Jet Powered 31ft of Hose with an All Purpose Debris Bag**Polaris**$564.35**5,409 rev16y ago](https://www.amazon.com/dp/B002HRET6A) [**Polaris Vac-Sweep 3900 Sport Pressure Side Pool Cleaner**Polaris**$914.58**534 rev17y ago](https://www.amazon.com/dp/B001TZ45GU)
### **Trending**
90-day click momentum
[**Polaris Vac-Sweep 280 Pressure-Side In-ground Pool Cleaner Double Venturi Jet Powered 31ft of Hose with an All Purpose Debris Bag**Polaris**$564.35**4.4★**— 8%**](https://www.amazon.com/dp/B002HRET6A) [**Polaris Vac-Sweep 3900 Sport Pressure Side Pool Cleaner**Polaris**$914.58**4.0★**— 7%**](https://www.amazon.com/dp/B001TZ45GU) [**Replacement for Zodiac Polaris R0543200 3900 Sport Robotic Swimming Pool Cleaner Rebuild Kit Tune-Up Kit Accessory Also for P39 Sport Pressure Inground Pool Cleaner Upgraded Silver**E-cowlboy**$181.38**4.0★**— 0%**](https://www.amazon.com/dp/B0D73BD35V) [**Polaris Vac-Sweep P39 Pressure Inground Pool Cleaner Triple Jet Powered with a Dual Chamber SuperBag for Debris**Polaris**$937.12**3.6★**▼ 39%**](https://www.amazon.com/dp/B01GWSJMQ6)
## **What buyers say about polaris 3900**
What buyers praise and complain about, mined from review topics.
### **What buyers love **
**Quality-Overall**19%
*“A Good Quality Replacement”*
**Ease Of Cleaning**19%
*“Clean pool”*
**Assembly/Installation**15%
*“simple to install”*
**Advertised Vs Actual Product**12%
*“Works as advertised”*
**Ease Of Use**9%
*“Its simple to use”*
**Value For Money**6%
*“Affordable”*
**Durability**5%
*“Reliability”*
**Instructions/User Manual/Troubleshooting**3%
*“The instructions were so thorough which is exactly what I need with these types of things”*
**Adjustability/Rotatability/Reclining**1%
*“they adjusted easily”*
**Brightness/Shine/Glow**1%
*“keeps the pool looking sparkling”*
### **What buyers complain about **
**Durability**13%
*“Polaris broke on the very last day”*
**Quality-Overall**10%
*“Poor support and product”*
**Instructions/User Manual/Troubleshooting**9%
*“The instructions to get it to work well are non existent”*
**Value For Money**9%
*“Replacement collection bags are outrageous in cost”*
**Maintenance And Repair**8%
*“the first lasted at leased 15 years with some repairs along the way”*
**Strength**7%
*“wheel attachment is extremely fragile”*
**Jamming/Clogging**5%
*“It gets tangled. yes after it was cut to fit pool”*
**Functionality-Overall**4%
*“Didn't upright itself very well”*
**Assembly/Installation**4%
*“the previous one was not setup properly”*
**Pressure**4%
*“Pressure control valve arrived broken”*
### **Top return reasons **
**Defective Material/Parts**38%
**Functionality-Overall**12%
**Product Condition**8%
**Value For Money**7%
**Connectivity-Overall**5%
**Size-Overall**5%
**Add-Ons/Attachments**5%
**Ease Of Cleaning**3%
**Advertised Vs Actual Product**3%
**Durability**2%
## **Common questions**
- **Is polaris 3900 profitable to sell on Amazon United States?**
- The niche generates $436K/yr across 4 tracked products. 90-day search growth is +62.2%. Flapen's verdict: Skip it (49/100).
- **How competitive is the polaris 3900 niche?**
- 2 brands and 24 sellers compete. The top 5 products take 100% of clicks and top 5 brands hold 100% of demand.
- **What do buyers complain about in polaris 3900?**
- Top complaints mined from reviews: Durability, Quality-Overall, Instructions/User Manual/Troubleshooting. The return rate is 0.6%.
- **When does demand for polaris 3900 peak?**
- Demand peaks in Apr–May–Jun; the busiest month runs 3.0× the quietest.
- **What does it cost to enter the polaris 3900 niche?**
- Listings span $181.38–$937.12; the average listing price is $649.36 (sweet spot $15–$100). The average incumbent carries 1,516 reviews — the moat a new listing must climb.
## **Related niches in Patio, Lawn & Garden**
- 82 [**lawn aerator**](https://flapen.com/research/us/patio-lawn-garden/lawn-aerator)$6.2M/yr+90.1%**Launch it**- 82 [**shepherds hooks for outdoor**](https://flapen.com/research/us/patio-lawn-garden/shepherds-hooks-for-outdoor)$3.9M/yr+141.2%**Launch it**- 82 [**garden mesh**](https://flapen.com/research/us/patio-lawn-garden/garden-mesh)$716K/yr+152.7%**Worth a look**- 83 [**chicken waterer**](https://flapen.com/research/us/patio-lawn-garden/chicken-waterer)$3.4M/yr+70.1%**Launch it**- 83 [**75 foot garden hose**](https://flapen.com/research/us/patio-lawn-garden/75-foot-garden-hose)$1.8M/yr+117.6%**Launch it**- 83 [**bird deterrents for outside**](https://flapen.com/research/us/patio-lawn-garden/bird-deterrents-for-outside)$2.1M/yr+131.5%**Launch it**[**All Patio, Lawn & Garden niches **](https://flapen.com/research/us/patio-lawn-garden)