polaris 3900
Skip itA concentrated shelf (top 5 take 100% of clicks) — this niche doesn't clear our bar today.
Returns
Incredible0.6%return rate — above 5% kills the launch gate
Quality gap
Incredible4.0★avg incumbent rating — lower means beatable quality
Conversion
Great7.6%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
Okay1,515.5avg incumbent reviews — the moat a new listing must climb
Competition
Bad100%top-5 click share — a locked-up shelf
Brand share
Bad100%top-5 brand share — brand-locked demand
Avg price
Bad$649.36avg listing price — sweet spot $15–$100
Price range
Bad$181.38–$937.12cheapest to priciest tracked listing — scored on the share inside $15–$100
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
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.Peak months: Apr, May, Jun · busiest ÷ quietest = 3.0×
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.
All 4 tracked products in this niche — three views at once, no toggling.
Top sellers
by 90-day click share
Polaris Vac-Sweep 3900 Sport Pressure Side Pool Cleaner
Polaris$914.584.0★534 rev
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$181.384.0★47 rev
Polaris Vac-Sweep P39 Pressure Inground Pool Cleaner Triple Jet Powered with a Dual Chamber SuperBag for Debris
Polaris$937.123.6★72 rev
Polaris Vac-Sweep 280 Pressure-Side In-ground Pool Cleaner Double Venturi Jet Powered 31ft of Hose with an All Purpose Debris Bag
Polaris$564.354.4★5,409 rev
Newest
by launch dateReplacement 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$181.3847 rev
Polaris Vac-Sweep P39 Pressure Inground Pool Cleaner Triple Jet Powered with a Dual Chamber SuperBag for Debris
Polaris$937.1272 rev
Polaris Vac-Sweep 280 Pressure-Side In-ground Pool Cleaner Double Venturi Jet Powered 31ft of Hose with an All Purpose Debris Bag
Polaris$564.355,409 rev
Polaris Vac-Sweep 3900 Sport Pressure Side Pool Cleaner
Polaris$914.58534 rev
Trending
90-day click momentumPolaris Vac-Sweep 280 Pressure-Side In-ground Pool Cleaner Double Venturi Jet Powered 31ft of Hose with an All Purpose Debris Bag
Polaris$564.354.4★
Polaris Vac-Sweep 3900 Sport Pressure Side Pool Cleaner
Polaris$914.584.0★
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$181.384.0★
Polaris Vac-Sweep P39 Pressure Inground Pool Cleaner Triple Jet Powered with a Dual Chamber SuperBag for Debris
Polaris$937.123.6★
What buyers say about polaris 3900
What buyers praise and complain about, mined from review topics.What buyers love
“A Good Quality Replacement”
“Clean pool”
“simple to install”
“Works as advertised”
“Its simple to use”
“Affordable”
“Reliability”
“The instructions were so thorough which is exactly what I need with these types of things”
“they adjusted easily”
“keeps the pool looking sparkling”
What buyers complain about
“Polaris broke on the very last day”
“Poor support and product”
“The instructions to get it to work well are non existent”
“Replacement collection bags are outrageous in cost”
“the first lasted at leased 15 years with some repairs along the way”
“wheel attachment is extremely fragile”
“It gets tangled. yes after it was cut to fit pool”
“Didn't upright itself very well”
“the previous one was not setup properly”
“Pressure control valve arrived broken”
Top return reasons
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.