Is shower dam profitable to sell on Amazon United States?

The niche generates $164K/yr across 21 tracked products. 3 of 4 products launched in the last 360 days are still selling. 90-day search growth is +6.1%. Flapen's verdict: Skip it (47/100).

How competitive is the shower dam niche?

13 brands and 16 sellers compete. The top 5 products take 60% of clicks and top 5 brands hold 81% of demand.

What do buyers complain about in shower dam?

Top complaints mined from reviews: Adhesion/Stickiness, Water Resistance, Functionality-Overall. The return rate is 4.3%.

When does demand for shower dam peak?

Demand is steady year-round — the busiest month runs 1.3× the quietest.

What does it cost to enter the shower dam niche?

Listings span $5.67–$38.66; the average listing price is $23.82 (sweet spot $15–$100). The average incumbent carries 468 reviews — the moat a new listing must climb.

shower dam

Skip it

Soft demand (+6.1% this quarter) — this niche doesn't clear our bar today.

Avg price

Incredible$23.82

avg listing price — sweet spot $15–$100

Review moat

Great467.62

avg incumbent reviews — the moat a new listing must climb

Quality gap

Good4.3★

avg incumbent rating — lower means beatable quality

Price range

Good$5.67–$38.66

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

Competition

Okay60%

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

Brand share

Okay81%

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

Conversion

Okay3.0%

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

Market size

Okay$164K

$164K/yr · 229K searches

Returns

Okay4.3%

return rate — above 5% kills the launch gate

Growth

Okay+6.1%

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

According to Flapen's Amazon United States niche tracking, shower dam is a $164K/yr Amazon United States market (229K searches/yr). The top 5 brands hold 81% of demand. Verdict: Skip it — 47/100.

Data updated Jul 27, 2026 · scored weekly · How we score niches

shower dam market data

Units sold / yr: 8K–10K; avg 250–500/product
Revenue / yr: $191K–$238K; units × avg price
Conversion rate: 3.0%
Avg BSR: #51
Page quality: 0%
Prime: 100%
Sponsored: 100%
Out of stock: 0.0%
Avg brand age: 35 months
Avg seller age: 177 days

Competition & brand share

The top 5 products take 60% of clicks — established leaders, but buyers still shop beyond them.

Brands

13 falling

Sellers

Top-5 brand share

81%

Top 20: 100%

Top-5 click share

60%

Top 20: 99%

Open market

13%

Duzzy28%
Raycity23%
Hzetuu14%
Zehiels9%
HIPPO DAM7%
Hi-Na6%
Open — no brand owns it (7 brands, 13%)

Demand & seasonality

Weekly Amazon search volume, last 104 weeks — +6.1% search growth over the last 90 days.

No pronounced peak months · busiest ÷ quietest = 1.3×

Open Trend

Top shower dam search terms

shower threshold water dam41K/yr +11.2%3.0% conv.
shower dam35K/yr +6.1%3.0% conv.
shower water dam22K/yr +9.6%2.8% conv.
shower dam for walk in shower20K/yr +2.6%3.3% conv.
shower threshold25K/yr -35.4%1.7% conv.
water dam for shower13K/yr +29.1%2.6% conv.
shower threshold water dam barrier12K/yr +14.2%2.0% conv.
shower lip water guard9K/yr +19.5%2.2% conv.
water catcher shower3K/yr +87.2%0.1% conv.
shower dam strip6K/yr +3.9%3.4% conv.

All search terms

Top shower dam 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.

Beatable (≤4.3★) Contested Strong incumbent (>4.7★)

All 21 tracked products in this niche — three views at once, no toggling.

Top sellers

by 90-day click share

Duzzy 67 Inch Collapsible Shower Water Dam Shower Stopper Barrier and Retention System and Keeps Water Inside Threshold Dry and Wet Separation Suitable for Bathroom and Kitchen

Duzzy$34.074.5★2,087 rev

New Collapsible Shower Threshold Water Dam Self Adhesive Silicone Waterproof Barrier Bathroom and Kitchen Water Strip Dam Shower Guard for Dry And Wet Separation Caulk Seal Strip Edge Trim(TM)

Raycity$15.414.2★1,176 rev

Shower Threshold Water Dam Guard - Self-Adhesive Silicone Waterproof Barrier Leak-Proof Flexible Easy Installation Customizable Length for Showers Bathtubs Sinks and Countertops by Hzetuu

Hzetuu$10.724.0★727 rev

Raycity 3 High Shower Threshold Water Dam 59 IN Collapsible Shower Water Splash Guard for Curbless Shower Threshold Barrier Water Stopper for Wet and Dry Separation Bathroom and Kitchen (White)

Raycity$38.664.6★562 rev

Zehiels 39 Shower Threshold Water Dam Silicone Shower Water Guard Collapsible Shower Door Bottom Seal Shower Splash Guard for Wet and Dry Separation

Zehiels$15.694.4★173 rev

Newest

by launch date

Shower Threshold Water Dam Barrier 39 - Transparent Collapsible Walk in Shower Water Guard - Door Bottom Seal Strip Leak Guard by Hippo Dam

HIPPO DAM$19.16110 rev

3mo ago

FCSOTSPS Shower Dam 2 PCS 1/2 X 1/4 (WxH) Shower Threshold Water Dam 36In Clear Acrylic Shower Bottom Seal Stop Shower Leaks and Create a Water Barrier

FCSOTSPS$26.3341 rev

10mo ago

Zehiels 39 Shower Threshold Water Dam Silicone Shower Water Guard Collapsible Shower Door Bottom Seal Shower Splash Guard for Wet and Dry Separation

Zehiels$15.69173 rev

12mo ago

Zehiels 67 Shower Threshold Water Dam Silicone Shower Water Guard Collapsible Shower Door Bottom Seal Shower Splash Guard for Wet and Dry Separation

Zehiels$23.64173 rev

12mo ago

Collapsible Shower Threshold Water Dam - 67in Self-Adhesive Silicone Barrier for Wet-Dry Separation - Flexible Splash Guard for Walk-In Showers Bathroom Floor & Kitchen Sink - ADA Accessible Profile

Hzetuu$28.54118 rev

1y ago

What buyers say about shower dam

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

What buyers love

Quality-Overall16%

“This strip is well made”

Assembly/Installation15%

“Easy install”

Advertised Vs Actual Product10%

“Works as advertised”

Efficiency9%

“Works for our purpose”

Adhesion/Stickiness7%

“Works well adheres tight”

Value For Money5%

“reasonable price”

Water Flow4%

“Works well for containing water in my open plan shower”

Water Resistance4%

“Easy to use water barrier”

Leak-Proof4%

“Didn't leak at all”

Ease Of Use4%

“Easy to use”

What buyers complain about

Adhesion/Stickiness34%

“Adhesive is terrible”

Water Resistance6%

“Not water tight as is”

Functionality-Overall6%

“Did not work”

Quality-Overall5%

“Not the best looking”

Value For Money3%

“Not worth the cost of the item”

Durability3%

“didnt hold for long”

Ease Of Cleaning3%

“even after cleaning”

Smell2%

“probably shouldve worn a mask for the terrible smell of the glue”

Size-Overall2%

“They do not give the size”

Leak-Proof2%

“Ever since my shower was built I've had a problem with water leaking out around the bottom of the door”

Top return reasons

Size-Overall38%

Adhesion/Stickiness14%

Functionality-Overall12%

Advertised Vs Actual Product7%

Compatibility-Overall6%

Height6%

Color3%

Defective Material/Parts2%

Value For Money2%