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55

stock tank pool liner

Worth a look

Shows demand growing +300.6% this quarter, but brand-locked demand (top 5 brands take 93% of clicks) keeps it on the watch list.

Market size 36Growth 100Conversion 19Competition 31Returns 96Price range 20Avg price 65Brand share 17Review moat 94Quality gap 79

Growth

Incredible+300.6%

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

Returns

Incredible0.9%

return rate — above 5% kills the launch gate

Review moat

Great123.18

avg incumbent reviews — the moat a new listing must climb

Quality gap

Great4.2★

avg incumbent rating — lower means beatable quality

Avg price

Good$130.54

avg listing price — sweet spot $15–$100

Market size

Okay$178K

$178K/yr · 92K searches

Competition

Okay66%

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

Price range

Bad$22.69–$416.60

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

Conversion

Bad1.5%

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

Brand share

Bad93%

top-5 brand share — brand-locked demand

According to Flapen's Amazon United States niche tracking, stock tank pool liner is a $178K/yr Amazon United States market (92K searches/yr). The top 5 brands hold 93% of demand. Demand peaks in May–Jun–Jul. Verdict: Worth a look — 55/100.

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

stock tank pool liner market data

Units sold / yr
1K–1K
avg 0–100/product
Revenue / yr
$131K–$163K
units × avg price
Conversion rate
1.5%
Avg BSR
#146
Page quality
0%
Prime
88%
Sponsored
53%
Out of stock
2.9%
Avg brand age
39 months
Avg seller age
175 days

Competition & brand share

The top 5 products take 66% of clicks — established leaders, but buyers still shop beyond them.

Brands

8 falling

Sellers

15

Top-5 brand share

93%

Top 20: 100%

Top-5 click share

66%

Top 20: 100%

Open market

4%

  • VEVOR46%
  • Smartline18%
  • Blue Wave17%
  • Generic10%
  • Verdanzia3%
  • YEXEXINM3%
  • Open — no brand owns it (2 brands, 4%)

Demand & seasonality

Weekly Amazon search volume, last 104 weeks — +300.6% search growth over the last 90 days.
12K8KSpike '25Spike '26Prime Day '26SepDecMarJunAugNovMarMay

Peak months: May, Jun, Jul · busiest ÷ quietest = 30.0×

Top stock tank pool liner search terms

  • stock tank pool liner46K/yr
  • stock tank liner18K/yr
  • stock tank pool liner 8ft round6K/yr
  • 8ft pool liner5K/yr
  • 8ft stock tank pool liner4K/yr
  • 8 ft round pool liner for stock tank4K/yr
  • 8 foot stock tank pool liner4K/yr
  • stock tank pool liners3K/yr
  • stock tank liners3K/yr
All search terms

Top stock tank pool liner 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%$18K20%$36K30%$53K40%$71K1101001K Reviews — right = deep review moat Market share (90d) ≈ est. sales
Beatable (≤4.3★) Contested Strong incumbent (>4.7★)

All 17 tracked products in this niche — three views at once, no toggling.

What buyers say about stock tank pool liner

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

What buyers love

Size-Overall27%

“Fit is good”

Durability14%

“great durability”

Quality-Overall11%

“Excellent quality, easy to put on”

Assembly/Installation11%

“Easy install”

Thickness7%

“Nicely made, very thick and EASY to install”

Value For Money6%

“Definitely worth every penny”

Material Quality5%

“Decent quality vinyl”

Leak-Proof3%

“Stopped the leakage we had before installing”

Advertised Vs Actual Product3%

“Came as expected”

Color2%

“Beautiful color”

What buyers complain about

Rusts/Corrodes14%

“once it began to rust on the interior”

Size-Overall11%

“Didn't fit the size it said”

Durability10%

“1 of which snapped apart after 1 day”

Advertised Vs Actual Product8%

“Didn't fit the size it said”

Thickness4%

“The material feels thicker than I expected”

Color4%

“About the blue and black mingled 8 foot liner for my stock tank and when I got it, I saw the other side was a light gray and so I opted to put that side up and not the blue worked perfectly and stretched nicely”

Quality-Overall4%

“Junk”

Certifications4%

“The company does not stand by its warranty or its products”

Contamination2%

“Not chlorine safe”

Assembly/Installation2%

“Many little tears within weeks of install”

Top return reasons

Size-Overall59%
Functionality-Overall5%
Value For Money5%
Advertised Vs Actual Product4%
Leak-Proof4%
Thin3%
Assembly/Installation3%
Product Condition2%
Maintenance And Repair2%
Material Quality2%

Common questions

Is stock tank pool liner profitable to sell on Amazon United States?
The niche generates $178K/yr across 17 tracked products. 3 of 5 products launched in the last 360 days are still selling. 90-day search growth is +300.6%. Flapen's verdict: Worth a look (55/100).
How competitive is the stock tank pool liner niche?
8 brands and 15 sellers compete. The top 5 products take 66% of clicks and top 5 brands hold 93% of demand.
What do buyers complain about in stock tank pool liner?
Top complaints mined from reviews: Rusts/Corrodes, Size-Overall, Durability. The return rate is 0.9%.
When does demand for stock tank pool liner peak?
Demand peaks in May–Jun–Jul; the busiest month runs 30.0× the quietest.
What does it cost to enter the stock tank pool liner niche?
Listings span $22.69–$416.60; the average listing price is $130.54 (sweet spot $15–$100). The average incumbent carries 123 reviews — the moat a new listing must climb.