Is shower cartridge replacement profitable to sell on Amazon United States?

The niche generates $96K/yr across 26 tracked products. 4 of 4 products launched in the last 360 days are still selling. 90-day search growth is -18.6%. Flapen's verdict: Skip it (43/100).

How competitive is the shower cartridge replacement niche?

18 brands and 96 sellers compete. The top 5 products take 56% of clicks and top 5 brands hold 78% of demand.

What do buyers complain about in shower cartridge replacement?

Top complaints mined from reviews: Leak-Proof, Size-Overall, Quality-Overall. The return rate is 6.5% — above our launch gate.

When does demand for shower cartridge replacement peak?

Demand peaks in Nov; the busiest month runs 1.6× the quietest.

What does it cost to enter the shower cartridge replacement niche?

Listings span $15.19–$56.79; the average listing price is $27.25 (sweet spot $15–$100). The average incumbent carries 962 reviews — the moat a new listing must climb.

shower cartridge replacement

Skip it

Soft demand (-18.6% this quarter) — this niche doesn't clear our bar today.

Avg price

Incredible$27.25

avg listing price — sweet spot $15–$100

Price range

Incredible$15.19–$56.79

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

Quality gap

Good4.3★

avg incumbent rating — lower means beatable quality

Review moat

Good962.23

avg incumbent reviews — the moat a new listing must climb

Competition

Okay56%

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

Brand share

Okay78%

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

Conversion

Okay2.7%

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

Market size

Bad$96K

$96K/yr · 132K searches

Returns

Bad6.5%

return rate — above 5% kills the launch gate

Growth

Bad-18.6%

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

Signals High Returns

According to Flapen's Amazon United States niche tracking, shower cartridge replacement is a $96K/yr Amazon United States market (132K searches/yr). The top 5 brands hold 78% of demand. Demand peaks in Nov. Verdict: Skip it — 43/100.

Data updated Jul 29, 2026 · scored weekly · How we score niches

shower cartridge replacement market data

Units sold / yr: 4K–5K; avg 100–250/product
Revenue / yr: $109K–$136K; units × avg price
Conversion rate: 2.7%
Avg BSR: #65
Page quality: 0%
Prime: 100%
Sponsored: 88%
Out of stock: 2.8%
Avg brand age: 42 months
Avg seller age: 140 days

Competition & brand share

The top 5 products take 56% of clicks — established leaders, but buyers still shop beyond them.

Brands

18 falling

Sellers

Top-5 brand share

78%

Top 20: 100%

Top-5 click share

56%

Top 20: 93%

Open market

20%

Sxtrrdnary28%
Tearel27%
BUWTIQ11%
Moen6%
ousun5%
LOWCUS2%

Demand & seasonality

Weekly Amazon search volume, last 104 weeks — -18.6% search growth over the last 90 days.

Peak months: Nov · busiest ÷ quietest = 1.6×

Open Trend

Top shower cartridge replacement search terms

shower cartridge replacement51K/yr -37.4%2.1% conv.
shower cartridge31K/yr +2.7%1.8% conv.
shower valve cartridge23K/yr -21.8%1.1% conv.
shower faucet cartridge10K/yr +16.4%1.4% conv.
shower valve cartridge replacement5K/yr -1.2%2.0% conv.
shower faucet cartridge replacement5K/yr -20.6%1.4% conv.
shower mixing valve cartridge4K/yr +3.8%0.5% conv.
bathtub cartridge replacement3K/yr -16.7%2.0% conv.

All search terms

Top shower cartridge replacement 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 24 tracked products in this niche — three views at once, no toggling.

Top sellers

by 90-day click share

RP46074 Compatible with Delta 13/14 Series Bath Tub Shower Faucet Single Handle Universal MultiChoice Rough-in Valve Monitor Cartridge Repair Assembly Plumbing Parts

Sxtrrdnary$19.164.4★510 rev

Tearel Shower Cartridge Compatible with Moen 1222 Replacement Cartridge with Removal Tool for Moen Posi Temp Shower and Tub Facuet Valve Repair Fix Leaks Drips Temperature Issue Stiff Handle

Tearel$30.394.3★1,092 rev

Cartridge Kit Compatible with Moen 1222 Replacement Cartridge for One-Handle PosiTemp Shower and Tub Brass Core Fix Common Issues

Tearel$17.614.0★1,064 rev

1222 Replacement Cartridge Kit for Moen One Handle Posi Temp Faucet Compatible with Moen Bathtub & Shower Valve Cartridge Including 104421 Removal Tool

BUWTIQ$25.294.2★47 rev

RP19804 Shower Cartridge Compatible with Delta 1300/1400 Series Single Handle Tub Bathtub Shower Faucet Replacement for Delta Monitor Cartridge Repair Plumbing Parts RP22734 Bonnet Nut (1993-2007)

Sxtrrdnary$20.904.2★345 rev

Newest

by launch date

FEMAR Pressure Balanced Cartridge #9740420 for Tub & Shower Valve Replacement Part for Pfister 0X8/JX8/VB8/JV8 Deep Casting Valves

FEMAR$29.1066 rev

8mo ago

1222/1222B Cartridge Pressure Balancing with 104421 Removal Tool & 116653 Handle Metal Adapter Replacement Compatible with Moen Posi Temp Single Handle Tub/Shower Faucets Plumbing Repair Kit Brass

OYIMNB$29.13215 rev

10mo ago

LOWCUS Shower Cartridge Replacement for Delta RP46074 (2006-Present) 1-Pack Compatible with Delta 13 14 Series Single Handle Includes Bonnet Nut Fix Leak or Drip Temperature or Pressure Issues

LOWCUS$21.78251 rev

10mo ago

1222 Replacement Cartridge Kit for Moen One Handle Posi Temp Faucet Compatible with Moen Bathtub & Shower Valve Cartridge Including 104421 Removal Tool

BUWTIQ$25.2947 rev

1y ago

1222 Replacement Cartridge Kit for Moen One Handle Posi Temp Faucet Compatible with Moen Bathtub & Shower Valve Cartridge Durable Brass & Plastic Construction

BUWTIQ$18.2989 rev

1y ago

What buyers say about shower cartridge replacement

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

What buyers love

Size-Overall19%

“Fit as expected”

Assembly/Installation13%

“just installed with no problems”

Value For Money11%

“Good value for money”

Leak-Proof11%

“No leaks”

Quality-Overall9%

“Best quality”

Advertised Vs Actual Product9%

“As advertised”

Efficiency4%

“Works great”

Ease Of Use3%

“Easy peasy”

Maintenance And Repair2%

“This repair kit is very good quality”

Pressure1%

“Pressure is stronger”

What buyers complain about

Leak-Proof23%

“Leaks like crazy”

Size-Overall13%

“Didn't fit”

Quality-Overall8%

“Absolute garbage”

Functionality-Overall6%

“This thing does not function as well as the original”

Durability6%

“Easily broken”

Assembly/Installation5%

“The cartridge was extremely difficult to install”

Ease Of Use5%

“difficult to remove”

Value For Money4%

“cost”

Instructions/User Manual/Troubleshooting2%

“Great Product, Poor Instructions”

Spray/Flow1%

“Slow water flow”

Top return reasons

Size-Overall50%

Compatibility-Overall13%

Leak-Proof9%

Defective Material/Parts7%

Functionality-Overall5%

Advertised Vs Actual Product4%

Value For Money3%

Product Condition3%

Assembly/Installation2%

Maintenance And Repair1%

Common questions

Is shower cartridge replacement profitable to sell on Amazon United States?: The niche generates $96K/yr across 26 tracked products. 4 of 4 products launched in the last 360 days are still selling. 90-day search growth is -18.6%. Flapen's verdict: Skip it (43/100).
How competitive is the shower cartridge replacement niche?: 18 brands and 96 sellers compete. The top 5 products take 56% of clicks and top 5 brands hold 78% of demand.
What do buyers complain about in shower cartridge replacement?: Top complaints mined from reviews: Leak-Proof, Size-Overall, Quality-Overall. The return rate is 6.5% — above our launch gate.
When does demand for shower cartridge replacement peak?: Demand peaks in Nov; the busiest month runs 1.6× the quietest.
What does it cost to enter the shower cartridge replacement niche?: Listings span $15.19–$56.79; the average listing price is $27.25 (sweet spot $15–$100). The average incumbent carries 962 reviews — the moat a new listing must climb.