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50

dual flush valve replacement kit

Worth a look

Shows a sweet-spot price point ($27.96 avg), but a small market ($58K/yr) keeps it on the watch list.

Market size 15Growth 24Conversion 38Competition 62Returns 48Price range 76Avg price 95Brand share 65Review moat 65Quality gap 76

Avg price

Incredible$27.96

avg listing price — sweet spot $15–$100

Quality gap

Great4.3★

avg incumbent rating — lower means beatable quality

Price range

Great$7.80–$38.71

cheapest to priciest tracked listing — scored on the share inside $15–$100

Brand share

Good66%

top-5 brand share — brands hold most of the demand

Review moat

Good889.49

avg incumbent reviews — the moat a new listing must climb

Competition

Good48%

top-5 click share — leaders hold, buyers still browse

Returns

Okay3.1%

return rate — above 5% kills the launch gate

Conversion

Okay3.0%

search→purchase rate — share of searches ending in a sale

Growth

Bad-1.4%

90-day search growth — must beat 0% to launch

Market size

Bad$58K

$58K/yr · 69K searches

According to Flapen's Amazon United States niche tracking, dual flush valve replacement kit is a $58K/yr Amazon United States market (69K searches/yr). The top 5 brands hold 66% of demand. Demand peaks in Jan. Verdict: Worth a look — 50/100.

Data updated Jul 29, 2026 · scored weekly · How we score niches

dual flush valve replacement kit market data

Units sold / yr
2K–3K
avg 0–100/product
Revenue / yr
$56K–$70K
units × avg price
Conversion rate
3.0%
Avg BSR
#3,341
Page quality
0%
Prime
97%
Sponsored
91%
Out of stock
3.4%
Avg brand age
49 months
Avg seller age
146 days

Competition & brand share

The top 5 products take 48% of clicks — established leaders, but buyers still shop beyond them.

Brands

18 falling

Sellers

97

Top-5 brand share

66%

Top 20: 100%

Top-5 click share

48%

Top 20: 86%

Open market

25%

  • houpeoro20%
  • Danco13%
  • Fluidmaster13%
  • Next by Danco10%
  • Senshare10%
  • Ulinlo pouly9%

Demand & seasonality

Weekly Amazon search volume, last 104 weeks — -1.4% search growth over the last 90 days.
3K2KPrime Day '25Spike '26SepDecMarJunAugNovMarMay

Peak months: Jan · busiest ÷ quietest = 1.6×

Top dual flush valve replacement kit search terms

  • dual flush valve replacement kit27K/yr
  • push button toilet flush kit7K/yr
  • dual flush toilet kit10K/yr
  • dual flush valve7K/yr
  • toilet dual flush valve7K/yr
  • dual flush toilet parts4K/yr
  • dual flush toilet conversion kit3K/yr
  • dual flush conversion kit4K/yr
All search terms

Top dual flush valve replacement kit 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%4%$2K8%$5K12%$7K16%$9K1101001K10K100K Reviews — right = deep review moat Market share (90d) ≈ est. sales
Beatable (≤4.3★) Contested Strong incumbent (>4.7★)1 product missing review or click data not plotted

All 24 tracked products in this niche — three views at once, no toggling.

What buyers say about dual flush valve replacement kit

What buyers praise and complain about, mined from review topics.

What buyers love

Assembly/Installation29%

“Easy to assemble”

Quality-Overall9%

“Excellent product”

Size-Overall8%

“Fit perfect”

Value For Money7%

“GREAT Deal”

Efficiency5%

“Does the job perfectly”

Advertised Vs Actual Product5%

“As advertised”

Instructions/User Manual/Troubleshooting5%

“Instructions are clear”

Ease Of Use4%

“Easy as pie”

Leak-Proof3%

“is leak free”

Maintenance And Repair2%

“Easy fix”

What buyers complain about

Leak-Proof11%

“It leaks”

Noise Level10%

“Random noises”

Functionality-Overall8%

“doesnt function properly”

Size-Overall7%

“one of them the hose was to short”

Durability7%

“broke almost instantly”

Quality-Overall5%

“the company needs a little more quality control for the parts”

Assembly/Installation3%

“Frustrating installation”

Instructions/User Manual/Troubleshooting3%

“Poorly written instructions”

Strength2%

“not as sturdy as some other versions”

Product Condition2%

“Used. Arrived used. Was cleaned”

Top return reasons

Size-Overall44%
Compatibility-Overall10%
Leak-Proof9%
Defective Material/Parts9%
Functionality-Overall6%
Advertised Vs Actual Product4%
Value For Money3%
Product Condition2%
Assembly/Installation2%
Maintenance And Repair1%

Common questions

Is dual flush valve replacement kit profitable to sell on Amazon United States?
The niche generates $58K/yr across 35 tracked products. 6 of 13 products launched in the last 360 days are still selling. 90-day search growth is -1.4%. Flapen's verdict: Worth a look (50/100).
How competitive is the dual flush valve replacement kit niche?
18 brands and 97 sellers compete. The top 5 products take 48% of clicks and top 5 brands hold 66% of demand.
What do buyers complain about in dual flush valve replacement kit?
Top complaints mined from reviews: Leak-Proof, Noise Level, Functionality-Overall. The return rate is 3.1%.
When does demand for dual flush valve replacement kit peak?
Demand peaks in Jan; the busiest month runs 1.6× the quietest.
What does it cost to enter the dual flush valve replacement kit niche?
Listings span $7.80–$38.71; the average listing price is $27.96 (sweet spot $15–$100). The average incumbent carries 889 reviews — the moat a new listing must climb.