kohler shower cartridge
Worth a lookShows a thin review moat (248 avg reviews), but brand-locked demand (top 5 brands take 98% of clicks) keeps it on the watch list.
Review moat
Great247.58avg incumbent reviews — the moat a new listing must climb
Quality gap
Great4.2★avg incumbent rating — lower means beatable quality
Avg price
Great$82.84avg listing price — sweet spot $15–$100
Competition
Great39%top-5 click share — an open shelf
Market size
Good$809K$809K/yr · 252K searches
Conversion
Okay3.9%search→purchase rate — share of searches ending in a sale
Growth
Bad-6.5%90-day search growth — must beat 0% to launch
Returns
Bad6.3%return rate — above 5% kills the launch gate
Price range
Bad$20.25–$646.64cheapest to priciest tracked listing — scored on the share inside $15–$100
Brand share
Bad98%top-5 brand share — brand-locked demand
According to Flapen's Amazon United States niche tracking, kohler shower cartridge is a $809K/yr Amazon United States market (252K searches/yr). The top 5 brands hold 98% of demand. Verdict: Worth a look — 50/100.
Data updated Jul 27, 2026 · scored weekly · How we score niches
kohler shower cartridge market data
- Units sold / yr
- 10K–13K
- avg 100–250/product
- Revenue / yr
- $828K–$1.0M
- units × avg price
- Conversion rate
- 3.9%
- Avg BSR
- #550
- Page quality
- 0%
- Prime
- 92%
- Sponsored
- 63%
- Out of stock
- 2.2%
- Avg brand age
- 39 months
- Avg seller age
- 137 days
Competition & brand share
Clicks spread well past the top 5 (39% combined) — an open shelf where new products get seen.Brands
8 rising
Sellers
145
Top-5 brand share
98%
Top 20: 100%
Top-5 click share
39%
Top 20: 78%
Open market
1%
- Kohler75%
- Tanxury13%
- Vayolli4%
- GREATUS3%
- Edifla2%
- ATESMO1%
- Open — no brand owns it (2 brands, 1%)
Demand & seasonality
Weekly Amazon search volume, last 104 weeks — -6.5% search growth over the last 90 days.No pronounced peak months · busiest ÷ quietest = 1.8×
Top kohler shower cartridge search terms
- kohler shower valve41K/yr
- kohler shower handle40K/yr
- kohler shower trim kit31K/yr
- kohler shower cartridge26K/yr
- kohler shower faucet19K/yr
- kohler shower valve and trim kit11K/yr
- kohler shower cartridge replacement10K/yr
- kohler shower trim9K/yr
- kohler rite temp shower trim kit5K/yr
- kohler k 304 trim kit6K/yr
Top kohler 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.
All 24 tracked products in this niche — three views at once, no toggling.
Top sellers
by 90-day click share
KOHLER Rite-Temp Pressure Balance Cartridge Genuine Part GP800881 One-Piece Design Simplifies Installation and Maintenance
Kohler$45.704.5★630 rev
GP876851 Mixer Cap and Pressure Balancing Unit Kit Compatible with Kohler Shower Valves K-304 and K-11748 Platforms Shower Cartridge Replacement Repair Kit Include GP800820 and GP77759
Tanxury$31.884.0★141 rev
Kohler TS35320-4-CP Elate Rite-Temp Valve Trim Polished Chrome Shiny Bathroom Valve Easy Maintenance
Kohler$44.614.3★54 rev
KOHLER 8304-K-NA Rite-Temp Pressure-Balancing Valve Body and Cartridge Kit Shower Valve System 5.0 GPM Simple Installation & Maintenance
Kohler$92.234.6★1,259 rev
Kohler TS35320-4-BN Elate Rite-Temp Valve Trim Vibrant Brushed Nickel Elegant Bathroom Valve Rust-Resistant
Kohler$71.784.3★54 rev
Newest
by launch date
1307346 Mixer Cap Sp Kit and GP800820 Pressure Balancing Unit Cartridge Compatible with Kohler Shower Valve Shower Cartridge Repair Kit for Rite-Temp and K-304 Shower Valve Retro
Edifla$67.867 rev
Kohler TS35320-4-CP Elate Rite-Temp Valve Trim Polished Chrome Shiny Bathroom Valve Easy Maintenance
Kohler$44.6154 rev
Kohler TS35320-4-BN Elate Rite-Temp Valve Trim Vibrant Brushed Nickel Elegant Bathroom Valve Rust-Resistant
Kohler$71.7854 rev
Kohler TS35320-4-BL Elate Rite-Temp Valve Trim Matte Black Contemporary Bathroom Valve High Durability
Kohler$71.1154 rev
Kohler TS35320-4-2MB Elate Rite-Temp Valve Trim Vibrant Brushed Moderne Brass Premium Bathroom Valve Easy to Use
Kohler$76.1054 rev
Trending
90-day click momentumKohler TS35320-4-BN Elate Rite-Temp Valve Trim Vibrant Brushed Nickel Elegant Bathroom Valve Rust-Resistant
Kohler$71.784.3★
Kohler TS35320-4-2MB Elate Rite-Temp Valve Trim Vibrant Brushed Moderne Brass Premium Bathroom Valve Easy to Use
Kohler$76.104.3★
KOHLER K-8304-KS-NA Rite-Temp Pressure-Balancing Valve Body and Cartridge Kit with Service Stops Shower Valve System 5.0 GPM Simple Installation & Maintenance
Kohler$106.244.6★
Kohler TS35320-4-BL Elate Rite-Temp Valve Trim Matte Black Contemporary Bathroom Valve High Durability
Kohler$71.114.3★
1307346 Mixer Cap Sp Kit and GP800820 Pressure Balancing Unit Cartridge Compatible with Kohler Shower Valve Shower Cartridge Repair Kit for Rite-Temp and K-304 Shower Valve Retro
Edifla$67.864.3★
What buyers say about kohler shower cartridge
What buyers praise and complain about, mined from review topics.What buyers love
“Great fit”
“Great quality”
“Ease of installation”
“it works as expected”
“So far so good, leak-less install”
“Affordable”
“Great pressure balancer and cartridge”
“Easy and quick”
“Works like it should”
“easy to keep clean”
What buyers complain about
“Bought 2 both leaked”
“Part broke within few months of use”
“This fitting does not fit well and cracks”
“I believe this is a low quality cartridge”
“Missing parts”
“And not great instructions”
“The water does not shut off at all”
“Misleading listing”
“Note: Check Compatibility”
“It's more money”
Top return reasons
Common questions
- Is kohler shower cartridge profitable to sell on Amazon United States?
- The niche generates $809K/yr across 48 tracked products. 1 of 3 products launched in the last 360 days are still selling. 90-day search growth is -6.5%. Flapen's verdict: Worth a look (50/100).
- How competitive is the kohler shower cartridge niche?
- 8 brands and 145 sellers compete. The top 5 products take 39% of clicks and top 5 brands hold 98% of demand.
- What do buyers complain about in kohler shower cartridge?
- Top complaints mined from reviews: Leak-Proof, Durability, Size-Overall. The return rate is 6.3% — above our launch gate.
- When does demand for kohler shower cartridge peak?
- Demand is steady year-round — the busiest month runs 1.8× the quietest.
- What does it cost to enter the kohler shower cartridge niche?
- Listings span $20.25–$646.64; the average listing price is $82.84 (sweet spot $15–$100). The average incumbent carries 248 reviews — the moat a new listing must climb.