---
title: "Shower Cartridge Replacement — $96K/yr Amazon US Niche (2026) - Flapen"
canonical_url: "https://flapen.com/research/us/tools-home-improvement/shower-cartridge-replacement"
last_updated: "2026-08-08T14:34:34.041Z"
locale: en
meta:
description: "Niche score 43/100 · $96K/yr market · 132K searches/yr · $27.25 avg price. Doesn't clear our bar today. Data updated Jul 2026."
"og:description": "Niche score 43/100 · $96K/yr market · 132K searches/yr · $27.25 avg price. Doesn't clear our bar today. Data updated Jul 2026."
"og:title": "Shower Cartridge Replacement — $96K/yr Amazon US Niche (2026) - Flapen"
---
# **shower cartridge replacement**
**Skip it**
Soft demand (-18.6% this quarter) — this niche doesn't clear our bar today.
Market size 24Growth 16Conversion 33Competition 48Returns 20Price range 95Avg price 95Brand share 45Review moat 63Quality gap 72
**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**
**Good****4.3★**
avg incumbent rating — lower means beatable quality
**Review moat**
**Good****962.23**
avg incumbent reviews — the moat a new listing must climb
**Competition**
**Okay****56%**
top-5 click share — leaders hold, buyers still browse
**Brand share**
**Okay****78%**
top-5 brand share — brands hold most of the demand
**Conversion**
**Okay****2.7%**
search→purchase rate — share of searches ending in a sale
**Market size**
**Bad****$96K**
$96K/yr · 132K searches
**Returns**
**Bad****6.5%**
return rate — above 5% kills the launch gate
**Growth**
**Bad****-18.6%**
90-day search growth — must beat 0% to launch
**Signals**[** High Returns**](https://flapen.com/research/niches?market=us&signal=high_returns "Return rate > 5%")
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 ~~](https://flapen.com/research/methodology)
## **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**
**96**
**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.
4K3K seasonSepDecMarJunAugNovMarMay
Peak months: Nov · busiest ÷ quietest = 1.6×
[**Open Trend **](https://flapen.com/research/us/tools-home-improvement/shower-cartridge-replacement/trend)
## **Top shower cartridge replacement search terms**
- **shower cartridge replacement**51K/yr-37.4%2.1% conv. - **shower cartridge**31K/yr+2.7%1.8% conv. - **shower valve cartridge**23K/yr-21.8%1.1% conv. - **shower faucet cartridge**10K/yr+16.4%1.4% conv. - **shower valve cartridge replacement**5K/yr-1.2%2.0% conv. - **shower faucet cartridge replacement**5K/yr-20.6%1.4% conv. - **shower mixing valve cartridge**4K/yr+3.8%0.5% conv. - **bathtub cartridge replacement**3K/yr-16.7%2.0% conv. [**All search terms **](https://flapen.com/research/us/tools-home-improvement/shower-cartridge-replacement/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.
0%5%$5K10%$10K15%$14K20%$19K101001K10K Reviews — right = deep review moatMarket 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.
### **Top sellers**
by 90-day click share
[1**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**$19.16**4.4★510 rev](https://www.amazon.com/dp/B0DF7VLR8K) [2**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**$30.39**4.3★1,092 rev](https://www.amazon.com/dp/B0BN57XFD8) [3**Cartridge Kit Compatible with Moen 1222 Replacement Cartridge for One-Handle PosiTemp Shower and Tub Brass Core Fix Common Issues**Tearel**$17.61**4.0★1,064 rev](https://www.amazon.com/dp/B0952RLLCC) [4**1222 Replacement Cartridge Kit for Moen One Handle Posi Temp Faucet Compatible with Moen Bathtub & Shower Valve Cartridge Including 104421 Removal Tool**BUWTIQ**$25.29**4.2★47 rev](https://www.amazon.com/dp/B0FCBZ8WRY) [5**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**$20.90**4.2★345 rev](https://www.amazon.com/dp/B0DH3DRZN8)
**~~View all top sellers →~~**
### **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**$29.10**66 rev8mo ago](https://www.amazon.com/dp/B0G1MNSYJV) [**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**$29.13**215 rev10mo ago](https://www.amazon.com/dp/B0FC2BFCSD) [**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**$21.78**251 rev10mo ago](https://www.amazon.com/dp/B0FQHXC1WY) [**1222 Replacement Cartridge Kit for Moen One Handle Posi Temp Faucet Compatible with Moen Bathtub & Shower Valve Cartridge Including 104421 Removal Tool**BUWTIQ**$25.29**47 rev1y ago](https://www.amazon.com/dp/B0FCBZ8WRY) [**1222 Replacement Cartridge Kit for Moen One Handle Posi Temp Faucet Compatible with Moen Bathtub & Shower Valve Cartridge Durable Brass & Plastic Construction**BUWTIQ**$18.29**89 rev1y ago](https://www.amazon.com/dp/B0F2T3NTGR)
**~~View all new products →~~**
### **Trending**
90-day click momentum
[**1222 Replacement Cartridge Kit for Moen One Handle Posi Temp Faucet Compatible with Moen Bathtub & Shower Valve Cartridge Including 104421 Removal Tool**BUWTIQ**$25.29**4.2★**▲ 193%**](https://www.amazon.com/dp/B0FCBZ8WRY) [**1222 Replacement Cartridge Kit for Moen One Handle Posi Temp Faucet Compatible with Moen Bathtub & Shower Valve Cartridge Durable Brass & Plastic Construction**BUWTIQ**$18.29**4.2★**▲ 146%**](https://www.amazon.com/dp/B0F2T3NTGR) [**FEMAR Pressure Balanced Cartridge #9740420 for Tub & Shower Valve Replacement Part for Pfister 0X8/JX8/VB8/JV8 Deep Casting Valves**FEMAR**$29.10**4.3★**▲ 92%**](https://www.amazon.com/dp/B0G1MNSYJV) [**RP46074 Compatible with Delta 13/14 Series Bath Tub Shower Faucet Single Handle Universal MultiChoice Rough-in Valve Monitor Cartridge Repair Assembly Plumbing Parts with RP22734 Bonnet Nut**Sxtrrdnary**$21.27**4.5★**▲ 92%**](https://www.amazon.com/dp/B0DH3DK1GZ) [**N40HKC Shower Cartridge Replacement Compatible with the SR SUN RISE Concealed Shower Systems KES Shower Systems the Height is 3.07 inches (78mm) and the Width is 1.58 inches (40mm) (1Pack)**ousun**$25.31**4.4★**▲ 71%**](https://www.amazon.com/dp/B0F93DDZMS)
**~~View all trending →~~**
## **What buyers say about shower cartridge replacement**
What buyers praise and complain about, mined from review topics.
### **What buyers love **
**Size-Overall**19%
*“Fit as expected”*
**Assembly/Installation**13%
*“just installed with no problems”*
**Value For Money**11%
*“Good value for money”*
**Leak-Proof**11%
*“No leaks”*
**Quality-Overall**9%
*“Best quality”*
**Advertised Vs Actual Product**9%
*“As advertised”*
**Efficiency**4%
*“Works great”*
**Ease Of Use**3%
*“Easy peasy”*
**Maintenance And Repair**2%
*“This repair kit is very good quality”*
**Pressure**1%
*“Pressure is stronger”*
### **What buyers complain about **
**Leak-Proof**23%
*“Leaks like crazy”*
**Size-Overall**13%
*“Didn't fit”*
**Quality-Overall**8%
*“Absolute garbage”*
**Functionality-Overall**6%
*“This thing does not function as well as the original”*
**Durability**6%
*“Easily broken”*
**Assembly/Installation**5%
*“The cartridge was extremely difficult to install”*
**Ease Of Use**5%
*“difficult to remove”*
**Value For Money**4%
*“cost”*
**Instructions/User Manual/Troubleshooting**2%
*“Great Product, Poor Instructions”*
**Spray/Flow**1%
*“Slow water flow”*
### **Top return reasons **
**Size-Overall**50%
**Compatibility-Overall**13%
**Leak-Proof**9%
**Defective Material/Parts**7%
**Functionality-Overall**5%
**Advertised Vs Actual Product**4%
**Value For Money**3%
**Product Condition**3%
**Assembly/Installation**2%
**Maintenance And Repair**1%
## **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.
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