---
title: "American Standard Flush Valve Seal — $465K/yr Amazon US Niche (2026) - Flapen"
canonical_url: "https://flapen.com/research/us/tools-home-improvement/american-standard-flush-valve-seal"
last_updated: "2026-08-09T04:34:46.646Z"
locale: en
meta:
description: "Niche score 45/100 · $465K/yr market · 59K searches/yr · $126.38 avg price. Doesn't clear our bar today. Data updated Jul 2026."
"og:description": "Niche score 45/100 · $465K/yr market · 59K searches/yr · $126.38 avg price. Doesn't clear our bar today. Data updated Jul 2026."
"og:title": "American Standard Flush Valve Seal — $465K/yr Amazon US Niche (2026) - Flapen"
---
# **american standard flush valve seal**
**Skip it**
Brand-locked demand (top 5 brands take 97% of clicks) — this niche doesn't clear our bar today.
Market size 58Growth 23Conversion 68Competition 24Returns 50Price range 17Avg price 66Brand share 7Review moat 75Quality gap 84
**Quality gap**
**Great****4.2★**
avg incumbent rating — lower means beatable quality
**Review moat**
**Great****493.27**
avg incumbent reviews — the moat a new listing must climb
**Conversion**
**Good****6.2%**
search→purchase rate — share of searches ending in a sale
**Avg price**
**Good****$126.38**
avg listing price — sweet spot $15–$100
**Market size**
**Good****$465K**
$465K/yr · 59K searches
**Returns**
**Good****3.0%**
return rate — above 5% kills the launch gate
**Competition**
**Bad****71%**
top-5 click share — a locked-up shelf
**Growth**
**Bad****-4.8%**
90-day search growth — must beat 0% to launch
**Price range**
**Bad****$6.80–$504.85**
cheapest to priciest tracked listing — scored on the share inside $15–$100
**Brand share**
**Bad****97%**
top-5 brand share — brand-locked demand
**Signals**[** High Price**](https://flapen.com/research/niches?market=us&signal=high_price "Avg price > $50")
According to Flapen's Amazon United States niche tracking, american standard flush valve seal is a $465K/yr Amazon United States market (59K searches/yr). The top 5 brands hold 97% of demand. Verdict: Skip it — 45/100.
Data updated Jul 27, 2026 · scored weekly · [~~How we score niches ~~](https://flapen.com/research/methodology)
## **american standard flush valve seal market data**
- **Units sold / yr**
- **3K–4K**
- avg 100–250/product
- **Revenue / yr**
- **$379K–$506K**
- units × avg price
- **Conversion rate**
- **6.2%**
- **Avg BSR**
- **#1,118**
- **Page quality**
- **0%**
- **Prime**
- **87%**
- **Sponsored**
- **87%**
- **Out of stock**
- **3.3%**
- **Avg brand age**
- **31 months**
- **Avg seller age**
- **131 days**
## **Competition & brand share**
The top 5 products capture 71% of clicks — a locked-up shelf that new listings rarely crack.
**Brands**
**7 **▼falling
**Sellers**
**82**
**Top-5 brand share**
**97%**
Top 20: 100%
**Top-5 click share**
**71%**
Top 20: 100%
**Open market**
**1%**
- American Standard54% - Hidnvefen27% - Ullnosoo8% - Korky6% - XMGHCK2% - BYMYZWG1% - Open — no brand owns it (1 brand, 1%)
## **Demand**
Weekly Amazon search volume, last 22 weeks — -4.8% search growth over the last 90 days.
1K800Mar '26Mar '26Apr '26May '26May '26Jun '26Jul '26
[**Open Trend **](https://flapen.com/research/us/tools-home-improvement/american-standard-flush-valve-seal/trend)
## **Top american standard flush valve seal search terms**
- **american standard 4215a flapper**14K/yr+1.8%6.0% conv. - **american standard champion 4**10K/yr+5.4%2.8% conv. - **american standard flush valve seal**10K/yr-3.5%6.6% conv. - **american standard champion toilet**5K/yr-11.3%0.3% conv. - **champion 4 flush valve**4K/yr+24.8%3.3% conv. - **7301111-0070a**4K/yr-4.5%9.5% conv. - **american standard 4149a flapper**3K/yr+3.0%5.8% conv. - **american standard champion**3K/yr-22.1%1.2% conv. - **champion 4 toilet**3K/yr-39.1%0.4% conv. - **american standard flapper seal**3K/yr-27.2%9.2% conv. [**All search terms **](https://flapen.com/research/us/tools-home-improvement/american-standard-flush-valve-seal/search-terms)
## **Top american standard flush valve seal 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%$46K20%$93K30%$139K40%$186K1101001K10K Reviews — right = deep review moatMarket share (90d) ≈ est. sales
Beatable (≤4.3★) Contested Strong incumbent (>4.7★)
All 15 tracked products in this niche — three views at once, no toggling.
### **Top sellers**
by 90-day click share
[1**Flush Valve Seal for American Standard & Eljer Toilets Upgraded Silicone Material 7301111-0070A American Standard Toilet Parts Replacement with O Rings for Champion 4 and Eljer Titan 4 2Pcs**Hidnvefen**$8.02**4.6★669 rev](https://www.amazon.com/dp/B0CNTBFM5W) [2**American Standard Toilet Tank Seal Champion Flush Valve Gasket Replacement**American Standard**$17.89**4.5★415 rev](https://www.amazon.com/dp/B004J5QEXE) [3**American Standard 4 Champion Universal Flush Valve Kit Genuine OEM Part Fits All 2-Piece Champion Toilets Includes Wrench Lock Nut & Extra Flapper (Model 7382106-100.0070A)**American Standard**$54.78**4.5★46 rev](https://www.amazon.com/dp/B0G4ZF2VK3) [4**American Standard 2034314.020 Champion 4 One-Piece Toilet with Toilet Seat Elongated Front Chair Height White 1.6 gpf**American Standard**$504.85**4.1★394 rev](https://www.amazon.com/dp/B01BNVDQDC) [5**American Standard 2004314.020 Champion 4 One-Piece Toilet with Toilet Seat Elongated Front Standard Height**American Standard**$486.92**4.1★394 rev](https://www.amazon.com/dp/B01BNVDPRE)
**~~View all top sellers →~~**
### **Newest**
by launch date
[**4-Inch Flush Valve Kit for American Standard Champion 4**BYMYZWG**$45.45**9 rev6mo ago](https://www.amazon.com/dp/B0GH72MDS5) [**American Standard 4 Champion Universal Flush Valve Kit Genuine OEM Part Fits All 2-Piece Champion Toilets Includes Wrench Lock Nut & Extra Flapper (Model 7382106-100.0070A)**American Standard**$54.78**46 rev7mo ago](https://www.amazon.com/dp/B0G4ZF2VK3) [**Flush Valve Seal for American Standard & Eljer Toilets 2 Pcs Toilet Tank Parts Leak-Proof Upgraded Silicone Replacement for 7301111-0070A for Champion 4 & Titan 4 Models with O Rings**Ullnosoo**$7.91**161 rev1y ago](https://www.amazon.com/dp/B0F9F6T9KP) [**Flush Valve Seal for American Standard & Eljer Toilets Upgraded Silicone Material 7301111-0070A Replacement with O Rings - Compatible with Champion 4 and Eljer Titan 4 Models (2 Pack)**XMGHCK**$6.80**90 rev1y ago](https://www.amazon.com/dp/B0F19BPRJ1) [**FXHDC-M Toilet Flush Valve Seal Replacement Kit for American Standard 2 Pack Silicone Material 7301111-0070a Repair Toilet Fill Valve Seal Flapper Parts With O Rings for Champion Eljer Titan 4**FXHDC-M**$7.37**55 rev1y ago](https://www.amazon.com/dp/B0DL4K8P9D)
**~~View all new products →~~**
### **Trending**
90-day click momentum
[**4-Inch Flush Valve Kit for American Standard Champion 4**BYMYZWG**$45.45**2.7★**▲ 250%**](https://www.amazon.com/dp/B0GH72MDS5) [**American Standard 4 Champion Universal Flush Valve Kit Genuine OEM Part Fits All 2-Piece Champion Toilets Includes Wrench Lock Nut & Extra Flapper (Model 7382106-100.0070A)**American Standard**$54.78**4.5★**▲ 110%**](https://www.amazon.com/dp/B0G4ZF2VK3) [**American Standard 211AA104.020 Champion PRO Two-Piece Toilet Elongated Front Chair Height White 1.28 gpf**American Standard**$357.87**4.2★**▲ 79%**](https://www.amazon.com/dp/B006TIENTG) [**American Standard 211BA104.020 Champion PRO Two-Piece Toilet Round Front Chair Height White 1.28 gpf**American Standard**$308.48**3.0★**▲ 54%**](https://www.amazon.com/dp/B006TIESRS) [**American Standard 2004314.020 Champion 4 One-Piece Toilet with Toilet Seat Elongated Front Standard Height**American Standard**$486.92**4.1★**▲ 35%**](https://www.amazon.com/dp/B01BNVDPRE)
**~~View all trending →~~**
## **What buyers say about american standard flush valve seal**
What buyers praise and complain about, mined from review topics.
### **What buyers love **
**Leak-Proof**15%
*“doesn't leak a bit”*
**Assembly/Installation**15%
*“Install went smooth enough”*
**Size-Overall**14%
*“Fit perfect”*
**Ease Of Use**7%
*“Quick and easy”*
**Efficiency**7%
*“Functional enough,”*
**Value For Money**7%
*“Less expensive”*
**Maintenance And Repair**6%
*“Perfect replacement”*
**Quality-Overall**6%
*“The included brass hardware appears decent”*
**Advertised Vs Actual Product**5%
*“Worked as advertised”*
**Material Quality**2%
*“Better material than original installed”*
### **What buyers complain about **
**Leak-Proof**28%
*“Product started to leak down”*
**Durability**10%
*“Failed after less than a year of use”*
**Size-Overall**8%
*“Wrong size listing”*
**Quality-Overall**6%
*“not oem quality”*
**Functionality-Overall**5%
*“didn't work”*
**Assembly/Installation**5%
*“Does not include the plastic wrench needed to install”*
**Value For Money**4%
*“plus $30 for a box to return in”*
**Water Resistance**3%
*“The original design is a poor attempt at water conservation”*
**Advertised Vs Actual Product**3%
*“is not up to specifications”*
**Design-Overall**2%
*“The original design is a poor attempt at water conservation”*
### **Top return reasons **
**Size-Overall**55%
**Compatibility-Overall**9%
**Defective Material/Parts**8%
**Advertised Vs Actual Product**8%
**Leak-Proof**7%
**Value For Money**3%
**Functionality-Overall**3%
**Maintenance And Repair**2%
**Assembly/Installation**2%
**Product Condition**1%
## **Common questions**
- **Is american standard flush valve seal profitable to sell on Amazon United States?**
- The niche generates $465K/yr across 15 tracked products. 1 of 2 products launched in the last 360 days are still selling. 90-day search growth is -4.8%. Flapen's verdict: Skip it (45/100).
- **How competitive is the american standard flush valve seal niche?**
- 7 brands and 82 sellers compete. The top 5 products take 71% of clicks and top 5 brands hold 97% of demand.
- **What do buyers complain about in american standard flush valve seal?**
- Top complaints mined from reviews: Leak-Proof, Durability, Size-Overall. The return rate is 3.0%.
- **What does it cost to enter the american standard flush valve seal niche?**
- Listings span $6.80–$504.85; the average listing price is $126.38 (sweet spot $15–$100). The average incumbent carries 493 reviews — the moat a new listing must climb.
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