---
title: "Peerless Shower Cartridge — $33K/yr Amazon US Niche (2026) - Flapen"
canonical_url: "https://flapen.com/research/us/tools-home-improvement/peerless-shower-cartridge"
last_updated: "2026-08-08T21:21:51.697Z"
locale: en
meta:
description: "Niche score 38/100 · $33K/yr market · 11K searches/yr · $29.91 avg price. Doesn't clear our bar today. Data updated Jul 2026."
"og:description": "Niche score 38/100 · $33K/yr market · 11K searches/yr · $29.91 avg price. Doesn't clear our bar today. Data updated Jul 2026."
"og:title": "Peerless Shower Cartridge — $33K/yr Amazon US Niche (2026) - Flapen"
---
# **peerless shower cartridge**
**Skip it**
A small market ($33K/yr) — this niche doesn't clear our bar today.
Market size 8Growth 10Conversion 87Competition 23Returns 8Price range 95Avg price 95Brand share 36Review moat 91Quality gap 52
**Avg price**
**Incredible****$29.91**
avg listing price — sweet spot $15–$100
**Price range**
**Incredible****$20.90–$47.07**
cheapest to priciest tracked listing — scored on the share inside $15–$100
**Review moat**
**Great****175.42**
avg incumbent reviews — the moat a new listing must climb
**Conversion**
**Great****9.9%**
search→purchase rate — share of searches ending in a sale
**Quality gap**
**Good****4.4★**
avg incumbent rating — lower means beatable quality
**Brand share**
**Okay****83%**
top-5 brand share — brands hold most of the demand
**Competition**
**Bad****72%**
top-5 click share — a locked-up shelf
**Growth**
**Bad****-30.8%**
90-day search growth — must beat 0% to launch
**Market size**
**Bad****$33K**
$33K/yr · 11K searches
**Returns**
**Bad****9.9%**
return rate — above 5% kills the launch gate
**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, peerless shower cartridge is a $33K/yr Amazon United States market (11K searches/yr). The top 5 brands hold 83% of demand. Verdict: Skip it — 38/100.
Data updated Jul 29, 2026 · scored weekly · [~~How we score niches ~~](https://flapen.com/research/methodology)
## **peerless shower cartridge market data**
- **Units sold / yr**
- **1K–1K**
- avg 100–250/product
- **Revenue / yr**
- **$30K–$37K**
- units × avg price
- **Conversion rate**
- **9.9%**
- **Avg BSR**
- **#414**
- **Page quality**
- **0%**
- **Prime**
- **100%**
- **Sponsored**
- **83%**
- **Out of stock**
- **0.0%**
- **Avg brand age**
- **33 months**
- **Avg seller age**
- **160 days**
## **Competition & brand share**
The top 5 products capture 72% of clicks — a locked-up shelf that new listings rarely crack.
**Brands**
**10 **▲rising
**Sellers**
**26**
**Top-5 brand share**
**83%**
Top 20: 100%
**Top-5 click share**
**72%**
Top 20: 100%
**Open market**
**10%**
- Peerless29% - Tanxury17% - Dreyoo16% - Coolfell14% - Kamrexi8% - Vayolli7% - Open — no brand owns it (4 brands, 10%)
## **Demand**
Weekly Amazon search volume, last 21 weeks — -30.8% search growth over the last 90 days.
300200Mar '26Mar '26Apr '26May '26May '26Jun '26Jul '26
[**Open Trend **](https://flapen.com/research/us/tools-home-improvement/peerless-shower-cartridge/trend)
## **Top peerless 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%10%$3K20%$7K30%$10K40%$13K1101001K10K Reviews — right = deep review moatMarket share (90d) ≈ est. sales
Beatable (≤4.3★) Contested Strong incumbent (>4.7★)
All 12 tracked products in this niche — three views at once, no toggling.
### **Top sellers**
by 90-day click share
[1**Peerless Single-Function Pressure Balance Cartridge RP70538**Peerless**$39.07**4.5★1,209 rev](https://www.amazon.com/dp/B005SQG6OK) [2**RP70538/RP73625 Shower Cartridge Replacement Single Function Pressure Balance Cartridge for Delta and Peerless Single Handle Tub/Showers Faucet (Check Valve Included)**Coolfell**$31.20**4.4★18 rev](https://www.amazon.com/dp/B0G2W1Z5TB) [3**Dreyoo 1 Pack Pressure Balance Cartridge Compatible with RP70538/RP73625**Dreyoo**$32.48**4.6★221 rev](https://www.amazon.com/dp/B0CN12VY3M) [4**RP70538 Single Function Pressure Balance Cartridge Replacement Shower Cartridge Compatible with Peerless and Delta Single Handle Tub/Showers Faucet Not Included Check Valve**Tanxury**$21.38**4.0★26 rev](https://www.amazon.com/dp/B0D2DRDKTJ) [5**RP70538/RP73625 Shower Cartridge Compatible with Peerless/Delta**Kamrexi**$23.77**4.1★7 rev](https://www.amazon.com/dp/B0G511YY2X)
**~~View all top sellers →~~**
### **Newest**
by launch date
[**Mektarvix RP70538 Shower Cartridge with RP73625 Check Valve Replacement for Kissler 46-0538 Compatible with Delta Peerless Foundation Linden Zura Single-Handle Tub Faucet Pressure Balance Core**Mektarvix**$26.88**1 rev2mo ago](https://www.amazon.com/dp/B0GXVC7THW) [**RP70538/RP73625 Shower Cartridge Compatible with Peerless/Delta**Kamrexi**$23.77**7 rev7mo ago](https://www.amazon.com/dp/B0G511YY2X) [**RP70538/RP73625 Shower Cartridge Replacement Single Function Pressure Balance Cartridge for Delta and Peerless Single Handle Tub/Showers Faucet (Check Valve Included)**Coolfell**$31.20**18 rev8mo ago](https://www.amazon.com/dp/B0G2W1Z5TB) [**Single Function Pressure Balance Cartridge RP73625 RP70538 Cartridge For Delta Shower Cartridge Replacement Peerless/Delta Shower Replacement Single Handle Tub & Showers Faucet (Check Valve Included)**FAMELEC**$26.10**3 rev1y ago](https://www.amazon.com/dp/B0FHBWR37Y) [**RP70538/RP73625 Single Function Pressure Balance Cartridge Replacement Compatible with Peerless/Delta Shower Cartridge Replacement Single Handle Tub and Showers Faucet (RP73625 Check Valve Included)**Tanxury**$32.32**18 rev1y ago](https://www.amazon.com/dp/B0F8B6KWNH)
**~~View all new products →~~**
### **Trending**
90-day click momentum
[**Mektarvix RP70538 Shower Cartridge with RP73625 Check Valve Replacement for Kissler 46-0538 Compatible with Delta Peerless Foundation Linden Zura Single-Handle Tub Faucet Pressure Balance Core**Mektarvix**$26.88**5.0★**▲ 381%**](https://www.amazon.com/dp/B0GXVC7THW) [**RP70538/RP73625 Shower Cartridge Compatible with Peerless/Delta**Kamrexi**$23.77**4.1★**▲ 239%**](https://www.amazon.com/dp/B0G511YY2X) [**Single Function Pressure Balance Cartridge RP73625 RP70538 Cartridge For Delta Shower Cartridge Replacement Peerless/Delta Shower Replacement Single Handle Tub & Showers Faucet (Check Valve Included)**FAMELEC**$26.10**5.0★**▲ 157%**](https://www.amazon.com/dp/B0FHBWR37Y) [**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★**▲ 71%**](https://www.amazon.com/dp/B0DH3DRZN8) [**RP70538/RP73625 Shower Cartridge Replacement Single Function Pressure Balance Cartridge for Delta and Peerless Single Handle Tub/Showers Faucet (Check Valve Included)**Coolfell**$31.20**4.4★**▲ 38%**](https://www.amazon.com/dp/B0G2W1Z5TB)
**~~View all trending →~~**
## **What buyers say about peerless shower cartridge**
What buyers praise and complain about, mined from review topics.
### **What buyers love **
**Size-Overall**19%
*“Fit perfect”*
**Quality-Overall**17%
*“Fantastic quality and a breeze to install”*
**Leak-Proof**16%
*“doesn't leak one bit”*
**Assembly/Installation**13%
*“Easy install”*
**Value For Money**11%
*“Good deal”*
**Advertised Vs Actual Product**5%
*“works as advertised”*
**Efficiency**4%
*“Works well”*
**Pressure**2%
*“the water control worked good installation was simple”*
**Ease Of Use**2%
*“not to difficult”*
**Durability**2%
*“It does feel durable”*
### **What buyers complain about **
**Size-Overall**21%
*“the cartridge is simply manufactured too large”*
**Leak-Proof**19%
*“Started leaking quickly and made a big mess”*
**Assembly/Installation**10%
*“My Plumber tried to install would not work”*
**Quality-Overall**9%
*“Cheap junk”*
**Defective Material/Parts**5%
*“This part is junk”*
**Functionality-Overall**5%
*“they operate very poorly”*
**Durability**3%
*“Easily broken”*
**Compatibility-Overall**3%
*“Does not fit delta 1400”*
**Advertised Vs Actual Product**3%
*“wrong models listed in the ad”*
**Ease Of Use**3%
*“difficult to remove”*
### **Top return reasons **
**Size-Overall**61%
**Compatibility-Overall**21%
**Defective Material/Parts**5%
**Functionality-Overall**3%
**Leak-Proof**3%
**Advertised Vs Actual Product**2%
**Product Condition**1%
**Assembly/Installation**1%
**Value For Money**1%
**Maintenance And Repair**1%
## **Common questions**
- **Is peerless shower cartridge profitable to sell on Amazon United States?**
- The niche generates $33K/yr across 12 tracked products. 0 of 3 products launched in the last 360 days are still selling. 90-day search growth is -30.8%. Flapen's verdict: Skip it (38/100).
- **How competitive is the peerless shower cartridge niche?**
- 10 brands and 26 sellers compete. The top 5 products take 72% of clicks and top 5 brands hold 83% of demand.
- **What do buyers complain about in peerless shower cartridge?**
- Top complaints mined from reviews: Size-Overall, Leak-Proof, Assembly/Installation. The return rate is 9.9% — above our launch gate.
- **What does it cost to enter the peerless shower cartridge niche?**
- Listings span $20.90–$47.07; the average listing price is $29.91 (sweet spot $15–$100). The average incumbent carries 175 reviews — the moat a new listing must climb.
## **Related niches in Tools & Home Improvement**
- 73 [**solar outdoor lights**](https://flapen.com/research/us/tools-home-improvement/solar-outdoor-lights)$30.2M/yr+39.8%**Launch it**- 73 [**shower lamp**](https://flapen.com/research/us/tools-home-improvement/shower-lamp)$2.8M/yr+30.2%**Launch it**- 73 [**solar flowers**](https://flapen.com/research/us/tools-home-improvement/solar-flowers)$607K/yr+52.0%**Worth a look**- 73 [**american flag lights**](https://flapen.com/research/us/tools-home-improvement/american-flag-lights)$465K/yr+736.5%**Worth a look**- 73 [**solar fairy lights**](https://flapen.com/research/us/tools-home-improvement/solar-fairy-lights)$3.5M/yr+64.6%**Launch it**- 73 [**solar watering can with cascading lights**](https://flapen.com/research/us/tools-home-improvement/solar-watering-can-with-cascading-lights)$304K/yr+124.3%**Worth a look**[**All Tools & Home Improvement niches **](https://flapen.com/research/us/tools-home-improvement)