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82

pool filter balls

Launch it

A $981K/yr market growing +488.6% this quarter with returns at 0.5% — clears our launch bar.

Market size 77Growth 100Conversion 87Competition 68Returns 97Price range 78Avg price 95Brand share 86Review moat 85Quality gap 55

Growth

Incredible+488.6%

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

Returns

Incredible0.5%

return rate — above 5% kills the launch gate

Avg price

Incredible$24.84

avg listing price — sweet spot $15–$100

Conversion

Great10.0%

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

Brand share

Great49%

top-5 brand share — no brand owns this niche

Review moat

Great303.45

avg incumbent reviews — the moat a new listing must climb

Price range

Great$8.08–$40.31

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

Market size

Great$981K

$981K/yr · 397K searches

Competition

Good44%

top-5 click share — leaders hold, buyers still browse

Quality gap

Good4.4★

avg incumbent rating — lower means beatable quality

According to Flapen's Amazon United States niche tracking, pool filter balls is a $981K/yr Amazon United States market (397K searches/yr). The top 5 brands hold 49% of demand. Demand peaks in May–Jun–Jul. Verdict: Launch it — 82/100.

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

pool filter balls market data

Units sold / yr
40K–50K
avg 1,000–1,250/product
Revenue / yr
$994K–$1.2M
units × avg price
Conversion rate
10.0%
Avg BSR
#40
Page quality
0%
Prime
100%
Sponsored
100%
Out of stock
2.4%
Avg brand age
45 months
Avg seller age
166 days

Competition & brand share

The top 5 products take 44% of clicks — established leaders, but buyers still shop beyond them.

Brands

27 falling

Sellers

34

Top-5 brand share

49%

Top 20: 93%

Top-5 click share

44%

Top 20: 87%

Open market

44%

  • MAQIHAN11%
  • Vidapool11%
  • WLLEYAY10%
  • AQUASTRONG10%
  • SETHVILL7%
  • ZeeDix7%

Demand & seasonality

Weekly Amazon search volume, last 104 weeks — +488.6% search growth over the last 90 days.
25K15KSpike '25Spike '26SepDecMarJunAugNovMarMay

Peak months: May, Jun, Jul · busiest ÷ quietest = 60.3×

Top pool filter balls search terms

  • pool filter balls192K/yr
  • filter balls46K/yr
  • sand filter balls35K/yr
  • filter balls for sand filter38K/yr
  • pool filter balls for sand filter23K/yr
  • polysphere pool filtration balls9K/yr
  • pool filter media6K/yr
  • cotton balls for pool filter5K/yr
  • pool cotton filter balls5K/yr
  • pool sand filter balls5K/yr
All search terms

Top pool filter balls 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%3%$29K6%$59K9%$88K12%$118K101001K Reviews — right = deep review moat Market share (90d) ≈ est. sales
Beatable (≤4.3★) Contested Strong incumbent (>4.7★)

All 24 tracked products in this niche — three views at once, no toggling.

What buyers say about pool filter balls

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

What buyers love

Filtration25%

“Very effective filtering”

Ease Of Cleaning13%

“Easy to clean”

Ease Of Use12%

“easy to work with”

Value For Money10%

“Good value for the cost”

Quality-Overall9%

“Excellent product”

Weight Light4%

“They are remarkably lightweight”

Advertised Vs Actual Product4%

“better than expected”

Recycle/Reuse3%

“We like the reusability of the product”

Water Resistance3%

“keeps a good water clarity”

Assembly/Installation2%

“Installation is simple”

What buyers complain about

Filtration20%

“was not filtering well”

Functionality-Overall14%

“Does not work as described”

Ease Of Cleaning12%

“tedious to clean”

Size-Overall5%

“This bag is huge”

Quality-Overall4%

“Poor quality - does not filter pool well”

Water Resistance4%

“Water was nasty”

Jamming/Clogging3%

“This is so the filter balls will not immediately become clogged”

Value For Money3%

“Value for money is terrible”

Color2%

“I do wish they came in different colors rather than just blue balls”

Durability2%

“I don't know how long they last”

Top return reasons

Filtration45%
Size-Overall18%
Advertised Vs Actual Product10%
Value For Money8%
Functionality-Overall8%
Ease Of Cleaning2%
Defective Material/Parts1%
Material Quality1%
Jamming/Clogging1%
Quality-Overall1%

Common questions

Is pool filter balls profitable to sell on Amazon United States?
The niche generates $981K/yr across 33 tracked products. 14 of 16 products launched in the last 360 days are still selling. 90-day search growth is +488.6%. Flapen's verdict: Launch it (82/100).
How competitive is the pool filter balls niche?
27 brands and 34 sellers compete. The top 5 products take 44% of clicks and top 5 brands hold 49% of demand.
What do buyers complain about in pool filter balls?
Top complaints mined from reviews: Filtration, Functionality-Overall, Ease Of Cleaning. The return rate is 0.5%.
When does demand for pool filter balls peak?
Demand peaks in May–Jun–Jul; the busiest month runs 60.3× the quietest.
What does it cost to enter the pool filter balls niche?
Listings span $8.08–$40.31; the average listing price is $24.84 (sweet spot $15–$100). The average incumbent carries 303 reviews — the moat a new listing must climb.