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48

grohe shower cartridge

Skip it

Prices mostly outside the sweet spot ($29.00–$1850.01) — this niche doesn't clear our bar today.

Market size 76Growth 24Conversion 21Competition 94Returns 33Price range 4Avg price 23Brand share 8Review moat 67Quality gap 76

Competition

Great22%

top-5 click share — an open shelf

Market size

Great$929K

$929K/yr · 158K searches

Quality gap

Great4.3★

avg incumbent rating — lower means beatable quality

Review moat

Good808.66

avg incumbent reviews — the moat a new listing must climb

Returns

Okay4.3%

return rate — above 5% kills the launch gate

Growth

Bad-2.7%

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

Avg price

Bad$348.66

avg listing price — sweet spot $15–$100

Conversion

Bad1.7%

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

Brand share

Bad97%

top-5 brand share — brand-locked demand

Price range

Bad$29.00–$1850.01

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

According to Flapen's Amazon United States niche tracking, grohe shower cartridge is a $929K/yr Amazon United States market (158K searches/yr). The top 5 brands hold 97% of demand. Demand peaks in Apr–May–Jun–Jul. Verdict: Skip it — 48/100.

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

grohe shower cartridge market data

Units sold / yr
3K–3K
avg 0–100/product
Revenue / yr
$872K–$1.0M
units × avg price
Conversion rate
1.7%
Avg BSR
#822
Page quality
0%
Prime
83%
Sponsored
50%
Out of stock
2.7%
Avg brand age
40 months
Avg seller age
142 days

Competition & brand share

Clicks spread well past the top 5 (22% combined) — an open shelf where new products get seen.

Brands

12 rising

Sellers

159

Top-5 brand share

97%

Top 20: 100%

Top-5 click share

22%

Top 20: 53%

Open market

2%

  • GROHE87%
  • hansgrohe6%
  • DELTA2%
  • Edifla1%
  • Fluronic1%
  • VORGENS1%
  • Open — no brand owns it (6 brands, 2%)

Demand & seasonality

Weekly Amazon search volume, last 99 weeks — -2.7% search growth over the last 90 days.
3K2KSpike '24Holiday '24Spike '25Prime Day '25Black Friday '25Spike '26DecMarJunAugNovMarMay

Peak months: Apr, May, Jun, Jul · busiest ÷ quietest = 6.6×

Top grohe shower cartridge search terms

  • grohe shower system57K/yr
  • grohe shower head60K/yr
  • grohe shower valve15K/yr
  • grohe shower11K/yr
  • grohe shower cartridge8K/yr
  • grohe cartridge replacement4K/yr
  • grohe cartridge3K/yr
All search terms

Top grohe shower cartridge 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%2%$19K4%$37K6%$56K8%$74K1101001K 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 grohe shower cartridge

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

What buyers love

Assembly/Installation16%

“Assembly is very easy”

Pressure16%

“GREAT water pressure”

Spray/Flow14%

“Great spray”

Quality-Overall11%

“High quality component”

Value For Money8%

“Great buy for the money”

Ease Of Cleaning3%

“Makes cleaning easier”

Advertised Vs Actual Product3%

“As advertised”

Design-Overall3%

“the build is really solid”

Ease Of Use3%

“Easy to use”

Leak-Proof2%

“Does not leak”

What buyers complain about

Durability15%

“broke instantly”

Leak-Proof12%

“Leak like a sieve”

Quality-Overall9%

“BAD QUALITY”

Material Quality7%

“material quality is poor”

Spray/Flow4%

“Too strong of a spray”

Assembly/Installation4%

“Cannot install”

Value For Money3%

“This is a pricey”

Size-Overall3%

“Not a standard size”

Water Resistance2%

“Leaks and shoots water everywhere”

Functionality-Overall2%

“Doesnt work as described”

Top return reasons

Size-Overall27%
Leak-Proof9%
Defective Material/Parts9%
Color6%
Advertised Vs Actual Product6%
Compatibility-Overall5%
Material Quality5%
Functionality-Overall4%
Value For Money4%
Quality-Overall3%

Common questions

Is grohe shower cartridge profitable to sell on Amazon United States?
The niche generates $929K/yr across 94 tracked products. 3 of 11 products launched in the last 360 days are still selling. 90-day search growth is -2.7%. Flapen's verdict: Skip it (48/100).
How competitive is the grohe shower cartridge niche?
12 brands and 159 sellers compete. The top 5 products take 22% of clicks and top 5 brands hold 97% of demand.
What do buyers complain about in grohe shower cartridge?
Top complaints mined from reviews: Durability, Leak-Proof, Quality-Overall. The return rate is 4.3%.
When does demand for grohe shower cartridge peak?
Demand peaks in Apr–May–Jun–Jul; the busiest month runs 6.6× the quietest.
What does it cost to enter the grohe shower cartridge niche?
Listings span $29.00–$1850.01; the average listing price is $348.66 (sweet spot $15–$100). The average incumbent carries 809 reviews — the moat a new listing must climb.