american standard flush valve seal
Skip itBrand-locked demand (top 5 brands take 97% of clicks) — this niche doesn't clear our bar today.
Quality gap
Great4.2★avg incumbent rating — lower means beatable quality
Review moat
Great493.27avg incumbent reviews — the moat a new listing must climb
Conversion
Good6.2%search→purchase rate — share of searches ending in a sale
Avg price
Good$126.38avg listing price — sweet spot $15–$100
Market size
Good$465K$465K/yr · 59K searches
Returns
Good3.0%return rate — above 5% kills the launch gate
Competition
Bad71%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–$504.85cheapest to priciest tracked listing — scored on the share inside $15–$100
Brand share
Bad97%top-5 brand share — brand-locked demand
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
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.Top american standard flush valve seal search terms
- american standard 4215a flapper14K/yr
- american standard champion 410K/yr
- american standard flush valve seal10K/yr
- american standard champion toilet5K/yr
- champion 4 flush valve4K/yr
- 7301111-0070a4K/yr
- american standard 4149a flapper3K/yr
- american standard champion3K/yr
- champion 4 toilet3K/yr
- american standard flapper seal3K/yr
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.
All 15 tracked products in this niche — three views at once, no toggling.
Top sellers
by 90-day click share
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$8.024.6★669 rev
American Standard Toilet Tank Seal Champion Flush Valve Gasket Replacement
American Standard$17.894.5★415 rev
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$54.784.5★46 rev
American Standard 2034314.020 Champion 4 One-Piece Toilet with Toilet Seat Elongated Front Chair Height White 1.6 gpf
American Standard$504.854.1★394 rev
American Standard 2004314.020 Champion 4 One-Piece Toilet with Toilet Seat Elongated Front Standard Height
American Standard$486.924.1★394 rev
Newest
by launch date
4-Inch Flush Valve Kit for American Standard Champion 4
BYMYZWG$45.459 rev
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$54.7846 rev
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$7.91161 rev
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$6.8090 rev
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$7.3755 rev
Trending
90-day click momentum4-Inch Flush Valve Kit for American Standard Champion 4
BYMYZWG$45.452.7★
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$54.784.5★
American Standard 211AA104.020 Champion PRO Two-Piece Toilet Elongated Front Chair Height White 1.28 gpf
American Standard$357.874.2★
American Standard 211BA104.020 Champion PRO Two-Piece Toilet Round Front Chair Height White 1.28 gpf
American Standard$308.483.0★
American Standard 2004314.020 Champion 4 One-Piece Toilet with Toilet Seat Elongated Front Standard Height
American Standard$486.924.1★
What buyers say about american standard flush valve seal
What buyers praise and complain about, mined from review topics.What buyers love
“doesn't leak a bit”
“Install went smooth enough”
“Fit perfect”
“Quick and easy”
“Functional enough,”
“Less expensive”
“Perfect replacement”
“The included brass hardware appears decent”
“Worked as advertised”
“Better material than original installed”
What buyers complain about
“Product started to leak down”
“Failed after less than a year of use”
“Wrong size listing”
“not oem quality”
“didn't work”
“Does not include the plastic wrench needed to install”
“plus $30 for a box to return in”
“The original design is a poor attempt at water conservation”
“is not up to specifications”
“The original design is a poor attempt at water conservation”
Top return reasons
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.