Skip to content
37

48x72 shower curtain liner

Skip it

A deep review moat (70,252 avg reviews) — this niche doesn't clear our bar today.

Market size 9Growth 33Conversion 86Competition 30Returns 88Price range 0Avg price 32Brand share 36Review moat 0Quality gap 35

Returns

Great1.3%

return rate — above 6% kills the launch gate

Conversion

Great9.8%

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

Brand share

Okay83%

top-5 brand share — brands hold most of the demand

Quality gap

Okay4.5★

avg incumbent rating — lower means beatable quality

Growth

Okay+6.0%

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

Avg price

Okay$9.88

avg listing price — sweet spot $15–$100

Competition

Okay67%

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

Market size

Bad$35K

$35K/yr · 36K searches

Review moat

Bad70,252.06

avg incumbent reviews — the moat a new listing must climb

Price range

Bad$6.64–$12.80

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

Competition

The top 5 products take 67% of clicks — established leaders, but buyers still shop beyond them.

Brands

12 rising

Sellers

19

Top-5 brand share

83%

Open market

12%

  • AmazerBath39%
  • ALYVIA SPRING18%
  • Mrs Awesome11%
  • Titanker8%
  • HARBOREST7%
  • Barossa Design5%
  • Open — no brand owns it (6 brands, 12%)

Product shelf

Each bubble is one product — market share against review moat; bubble size tracks estimated sales, color grades how beatable the incumbent looks.

0%5%$2K10%$4K15%$5K20%$7K1K10K100K1.0M 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.

Demand

Weekly Amazon search volume, last 49 weeks — +6.0% search growth over the last 90 days.
900700Spike '26Aug '25Sep '25Nov '25Jan '26Mar '26May '26

Reviews

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

What buyers love

Quality-Overall21%

“Good quality and easy to install”

Advertised Vs Actual Product12%

“As described”

Value For Money9%

“Great value”

Size-Overall8%

“Fits great”

Thickness4%

“Nice thickness”

Durability4%

“And durable”

Weight Heavy4%

“Real heavy duty”

Weight Light4%

“Light and easy to hang”

Strength3%

“Easy to install and very sturdy”

Water Resistance3%

“Its fully waterproof”

What buyers complain about

Thickness17%

“Not as thick as I expected”

Weight Heavy11%

“Weights are not heavy enough”

Quality-Overall8%

“This is low quality, flimsy”

Size-Overall7%

“Small”

Magnetic Strength/Adsorption5%

“Magnets dont stick”

Advertised Vs Actual Product5%

“misleading”

Weight Light5%

“Too Light and Not Enough Magnets/Weights”

Smell4%

“it has a smell”

Material Quality4%

“Cheap materials”

Thin3%

“Very thin”

Top return reasons

Size-Overall49%
Thin8%
Advertised Vs Actual Product7%
Material Quality6%
Weight Heavy5%
Value For Money4%
Quality-Overall3%
Magnetic Strength/Adsorption2%
Thickness2%
Color2%