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35

grey shower curtain liner

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Prices mostly outside the sweet spot ($6.74–$12.58) — this niche doesn't clear our bar today.

Market size 15Growth 32Conversion 94Competition 16Returns 72Price range 0Avg price 25Brand share 26Review moat 5Quality gap 48

Conversion

Great11.7%

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

Returns

Good2.1%

return rate — above 6% kills the launch gate

Quality gap

Okay4.5★

avg incumbent rating — lower means beatable quality

Growth

Okay+5.7%

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

Brand share

Okay89%

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

Avg price

Okay$8.88

avg listing price — sweet spot $15–$100

Competition

Bad81%

top-5 click share — a locked-up shelf

Market size

Bad$60K

$60K/yr · 58K searches

Review moat

Bad40,480.55

avg incumbent reviews — the moat a new listing must climb

Price range

Bad$6.74–$12.58

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

Competition

The top 5 products capture 81% of clicks — a locked-up shelf that new listings rarely crack.

Brands

9 falling

Sellers

13

Top-5 brand share

89%

Open market

7%

  • AmazerBath41%
  • Barossa Design26%
  • ALYVIA SPRING9%
  • Titanker7%
  • EHZNZIE6%
  • Kenney4%
  • Open — no brand owns it (3 brands, 7%)

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%10%$6K20%$12K30%$18K40%$24K1001K10K100K Reviews — right = deep review moat Market share (90d) ≈ est. sales
Beatable (≤4.3★) Contested Strong incumbent (>4.7★)

All 11 tracked products in this niche — three views at once, no toggling.

Demand & seasonality

Weekly Amazon search volume, last 98 weeks — +5.7% search growth over the last 90 days.
2K1KSpike '24Black Friday '24Prime Day '25DecMarJunAugNovMarMay

No pronounced peak months · busiest ÷ quietest = 1.3×

Reviews

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

What buyers love

Quality-Overall25%

“feels higher quality than expected”

Color15%

“I love the color”

Value For Money11%

“Great for the price”

Upholstery/Fabric Quality7%

“Love the style, color and fabric”

Durability6%

“Durable product”

Weight Heavy4%

“Its the best curtain liner I have ever seen its really heavy”

Thickness4%

“thick”

Advertised Vs Actual Product4%

“Does the job”

Assembly/Installation4%

“Easy to install”

Soft Feel4%

“Looks and feels great”

What buyers complain about

Thickness20%

“Very thin not thick enough”

Quality-Overall13%

“Cheap quality ripped while I was putting on my new bathroom curtain and hooks”

Material Quality10%

“but the material is vary thin compared to brands I normally use”

Water Resistance9%

“gets a little damp”

Thin8%

“Very thin”

Value For Money5%

“not worth the price”

Size-Overall4%

“well update if it fits not”

Magnetic Strength/Adsorption3%

“This liner has magnets on the bottom to hold it down but it blows into the shower while im showering and I have to keep pushing it out.”

Washability3%

“WASH B4 using”

Weight Heavy3%

“If you're expecting it to be heavy duty, it's not”

Top return reasons

Size-Overall20%
Material Quality18%
Color17%
Thin14%
Advertised Vs Actual Product6%
Quality-Overall5%
Value For Money3%
Magnetic Strength/Adsorption2%
Water Resistance2%
Strength2%