american standard toilet parts
Skip itBrand-locked demand (top 5 brands take 100% of clicks) — this niche doesn't clear our bar today.
Conversion
Incredible14.4%search→purchase rate — share of searches ending in a sale
Market size
Incredible$2.3M$2.3M/yr · 991K searches
Avg price
Great$16.05avg listing price — sweet spot $15–$100
Returns
Good2.8%return rate — above 5% kills the launch gate
Price range
Okay$10.05–$19.43cheapest to priciest tracked listing — scored on the share inside $15–$100
Growth
Okay+6.4%90-day search growth — must beat 0% to launch
Quality gap
Okay4.6★avg incumbent rating — lower means beatable quality
Review moat
Bad6,672.43avg incumbent reviews — the moat a new listing must climb
Competition
Bad93%top-5 click share — a locked-up shelf
Brand share
Bad100%top-5 brand share — brand-locked demand
According to Flapen's Amazon United States niche tracking, american standard toilet parts is a $2.3M/yr Amazon United States market (991K searches/yr). The top 5 brands hold 100% of demand. Demand peaks in Aug–Oct. Verdict: Skip it — 46/100.
Data updated Jul 29, 2026 · scored weekly · How we score niches
american standard toilet parts market data
- Units sold / yr
- 125K–150K
- avg 20,000–25,000/product
- Revenue / yr
- $2.0M–$2.4M
- units × avg price
- Conversion rate
- 14.4%
- Avg BSR
- #29
- Page quality
- 0%
- Prime
- 100%
- Sponsored
- 71%
- Out of stock
- 0.0%
- Avg brand age
- 45 months
- Avg seller age
- 149 days
Competition & brand share
The top 5 products capture 93% of clicks — a locked-up shelf that new listings rarely crack.Brands
3 falling
Sellers
71
Top-5 brand share
100%
Top 20: 100%
Top-5 click share
93%
Top 20: 100%
Open market
0%
- Fluidmaster79%
- Korky18%
- Kohler3%
- Open — no brand owns it (0%)
Demand & seasonality
Weekly Amazon search volume, last 73 weeks — +6.4% search growth over the last 90 days.Peak months: Aug, Oct · busiest ÷ quietest = 1.9×
Top american standard toilet parts search terms
- toilet fill valve196K/yr
- toilet fill valve replacement kit102K/yr
- toilet valve replacement kit80K/yr
- toilet valve63K/yr
- fluidmaster57K/yr
- toilet float replacement kit59K/yr
- fluidmaster toilet fill valve94K/yr
- fill valve for toilet tank52K/yr
- fluidmaster 400a52K/yr
- toilet water valve38K/yr
Top american standard toilet parts 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 7 tracked products in this niche — three views at once, no toggling.
Top sellers
by 90-day click share
Fluidmaster 400H-002 Performax Universal Toilet Fill Valve High Performance Tank and Bowl Water Control 1-Pack Multicolor
Fluidmaster$14.894.6★16,896 rev
Korky QuietFILL Platinum Toilet Fill Valve - Universal Fits 99% of Toilets - Easy Height Adjust for Fast Install 528MP
Korky$10.054.5★6,568 rev
Fluidmaster K-400H-039 High Performance Toilet Fill Valve with 2-Inch Adjustable Toilet Flapper Kit
Fluidmaster$16.604.6★4,289 rev
Fluidmaster 400AKRP10 Universal All In One Complete Toilet Tank Repair Kit For 2-Inch Flush Valve Toilets
Fluidmaster$19.434.5★7,654 rev
Fluidmaster 400A-019 Brass Shank Toilet Fill Valve
Fluidmaster$17.514.7★298 rev
Newest
by launch dateFluidmaster K-400H-039 High Performance Toilet Fill Valve with 2-Inch Adjustable Toilet Flapper Kit
Fluidmaster$16.604,289 rev
Fluidmaster 400A-019 Brass Shank Toilet Fill Valve
Fluidmaster$17.51298 rev
Korky QuietFILL 2X Long Life Toilet Fill Valve - Easy Height Adjust
Korky$15.96946 rev
Fluidmaster 400H-002 Performax Universal Toilet Fill Valve High Performance Tank and Bowl Water Control 1-Pack Multicolor
Fluidmaster$14.8916,896 rev
Korky QuietFILL Platinum Toilet Fill Valve - Universal Fits 99% of Toilets - Easy Height Adjust for Fast Install 528MP
Korky$10.056,568 rev
Trending
90-day click momentum
Kohler Genuine Part Gp1083167 Silent Fill Valve Kit For All Kohler Class Five Toilets 12.5 x 3.5 x 3
Kohler$17.944.6★
Fluidmaster 400AKRP10 Universal All In One Complete Toilet Tank Repair Kit For 2-Inch Flush Valve Toilets
Fluidmaster$19.434.5★
Korky QuietFILL Platinum Toilet Fill Valve - Universal Fits 99% of Toilets - Easy Height Adjust for Fast Install 528MP
Korky$10.054.5★
Fluidmaster 400H-002 Performax Universal Toilet Fill Valve High Performance Tank and Bowl Water Control 1-Pack Multicolor
Fluidmaster$14.894.6★
Fluidmaster K-400H-039 High Performance Toilet Fill Valve with 2-Inch Adjustable Toilet Flapper Kit
Fluidmaster$16.604.6★
What buyers say about american standard toilet parts
What buyers praise and complain about, mined from review topics.What buyers love
“Easy fix”
“Good deal”
“Excellent product”
“So far it works well”
“Fits Like a Glove”
“As described”
“Perfect, easy replacement”
“Clear instructions”
“it won't leak”
“Very adjustable”
What buyers complain about
“Leaking”
“Random noises”
“broke almost instantly”
“Low quality product”
“Doesn't work well”
“Very Difficult to Install”
“too small”
“with design flaws”
“Does not flush enough water”
“Used. Arrived used. Was cleaned”
Top return reasons
Common questions
- Is american standard toilet parts profitable to sell on Amazon United States?
- The niche generates $2.3M/yr across 7 tracked products. 90-day search growth is +6.4%. Flapen's verdict: Skip it (46/100).
- How competitive is the american standard toilet parts niche?
- 3 brands and 71 sellers compete. The top 5 products take 93% of clicks and top 5 brands hold 100% of demand.
- What do buyers complain about in american standard toilet parts?
- Top complaints mined from reviews: Leak-Proof, Noise Level, Durability. The return rate is 2.8%.
- When does demand for american standard toilet parts peak?
- Demand peaks in Aug–Oct; the busiest month runs 1.9× the quietest.
- What does it cost to enter the american standard toilet parts niche?
- Listings span $10.05–$19.43; the average listing price is $16.05 (sweet spot $15–$100). The average incumbent carries 6,672 reviews — the moat a new listing must climb.