toilet flange extender kit
Skip itBrand-locked demand (top 5 brands take 100% of clicks) — this niche doesn't clear our bar today.
Avg price
Great$22.23avg listing price — sweet spot $15–$100
Conversion
Great9.6%search→purchase rate — share of searches ending in a sale
Review moat
Great314.3avg incumbent reviews — the moat a new listing must climb
Price range
Good$8.02–$34.44cheapest to priciest tracked listing — scored on the share inside $15–$100
Quality gap
Okay4.5★avg incumbent rating — lower means beatable quality
Market size
Okay$104K$104K/yr · 49K searches
Growth
Bad-5.4%90-day search growth — must beat 0% to launch
Returns
Bad8.0%return rate — above 5% kills the launch gate
Competition
Bad84%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, toilet flange extender kit is a $104K/yr Amazon United States market (49K searches/yr). The top 5 brands hold 100% of demand. Demand peaks in Aug. Verdict: Skip it — 37/100.
Data updated Jul 29, 2026 · scored weekly · How we score niches
toilet flange extender kit market data
- Units sold / yr
- 4K–5K
- avg 100–250/product
- Revenue / yr
- $89K–$111K
- units × avg price
- Conversion rate
- 9.6%
- Avg BSR
- #238
- Page quality
- 0%
- Prime
- 100%
- Sponsored
- 60%
- Out of stock
- 5.6%
- Avg brand age
- 57 months
- Avg seller age
- 144 days
Competition & brand share
The top 5 products capture 84% of clicks — a locked-up shelf that new listings rarely crack.Brands
3 falling
Sellers
74
Top-5 brand share
100%
Top 20: 100%
Top-5 click share
84%
Top 20: 100%
Open market
0%
- Oatey85%
- One-N-Done12%
- RAINGOWN2%
- Open — no brand owns it (0%)
Demand & seasonality
Weekly Amazon search volume, last 86 weeks — -5.4% search growth over the last 90 days.Peak months: Aug · busiest ÷ quietest = 1.5×
Top toilet flange extender kit search terms
- toilet flange extender28K/yr
- toilet flange spacer9K/yr
- toilet flange extender kit5K/yr
- toilet flange extension kit7K/yr
Top toilet flange extender 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.
All 10 tracked products in this niche — three views at once, no toggling.
Top sellers
by 90-day click share
Oatey Toilet Flange Extender Kit 1/4- 1 5/8 in Red and Yellow
Oatey$22.934.5★1,167 rev
Oatey 43646 Closet Flange Spacer 1/2 in T PVC White 0.5 Inch
Oatey$8.024.7★219 rev
Oatey 43645 Closet Flange Spacer Kit with Gaskets 1/2 in. Spacer Closet Bolts and Shims
Oatey$14.974.6★126 rev
One N Done Toilet Flange Repair Kit - Toilet Kit For Low or Broken Flange. Toilet Wax Ring Replacement Kit W/Toilet Flange Extender Kit Easy Toilet Bolts & Toilet Caps For Bottom of Toilet. (1 Ea.)
One-N-Done$29.664.4★460 rev
Oatey 43401 Set-Rite Toilet Flange Extender Kit 1/4 - 1 Red Yellow
Oatey$34.444.6★248 rev
Newest
by launch date
RAINGOWN Toilet Flange Repair Kit with 16in Hose and Wax-Free Seal
RAINGOWN$25.39105 rev
One N Done Toilet Flange Repair Kit - Toilet Kit For Low or Broken Flange. Toilet Wax Ring Replacement Kit W/Toilet Flange Extender Kit Easy Toilet Bolts & Toilet Caps For Bottom of Toilet. (1 Ea.)
One-N-Done$29.66460 rev
One N Done Toilet Flange Repair Kit - Toilet Kit For Low or Broken Toilet Flange. Toilet Wax Ring Replacement Kit W/Toilet Flange Extender Kit. No Wax Ring For Toilet Bowl Or Toilet Seal Required (1)
One-N-Done$29.34335 rev
Oatey 43401 Set-Rite Toilet Flange Extender Kit 1/4 - 1 Red Yellow
Oatey$34.44248 rev
Oatey 43405 Set-Rite Toilet Flange Extender only 1 size Yellow
Oatey$14.1939 rev
Trending
90-day click momentumRAINGOWN Toilet Flange Repair Kit with 16in Hose and Wax-Free Seal
RAINGOWN$25.394.2★
Oatey 43405 Set-Rite Toilet Flange Extender only 1 size Yellow
Oatey$14.194.1★
One N Done Toilet Flange Repair Kit - Toilet Kit For Low or Broken Flange. Toilet Wax Ring Replacement Kit W/Toilet Flange Extender Kit Easy Toilet Bolts & Toilet Caps For Bottom of Toilet. (1 Ea.)
One-N-Done$29.664.4★
Oatey 43645 Closet Flange Spacer Kit with Gaskets 1/2 in. Spacer Closet Bolts and Shims
Oatey$14.974.6★
Oatey 43404 Set-Rite 1/4 in. to 3/8 Extender Toilet Flange Extension Kit Red Yellow
Oatey$17.434.6★
What buyers say about toilet flange extender kit
What buyers praise and complain about, mined from review topics.What buyers love
“Easy install”
“Works as advertised”
“Great toilet flange kit”
“Works great”
“Easy to use”
“Worth The Price”
“no leaks”
“Terrific repair kit - all needed pieces needed in the order”
“Perfect Fit”
“Save me from demolishing the floor and re-tiling”
What buyers complain about
“Doesnt work”
“Product arrived appeared to be opened previously”
“one was rusted out”
“garbage”
“For the price I woukd not recommend”
“Unfortunately, the product did not hold up as I wouldve hoped”
“Doesn't work with TOTO toliets”
“Falsely advised”
“would not allow full installation”
“Didn't fit”
Top return reasons
Common questions
- Is toilet flange extender kit profitable to sell on Amazon United States?
- The niche generates $104K/yr across 10 tracked products. 0 of 1 products launched in the last 360 days are still selling. 90-day search growth is -5.4%. Flapen's verdict: Skip it (37/100).
- How competitive is the toilet flange extender kit niche?
- 3 brands and 74 sellers compete. The top 5 products take 84% of clicks and top 5 brands hold 100% of demand.
- What do buyers complain about in toilet flange extender kit?
- Top complaints mined from reviews: Functionality-Overall, Product Condition, Rusts/Corrodes. The return rate is 8.0% — above our launch gate.
- When does demand for toilet flange extender kit peak?
- Demand peaks in Aug; the busiest month runs 1.5× the quietest.
- What does it cost to enter the toilet flange extender kit niche?
- Listings span $8.02–$34.44; the average listing price is $22.23 (sweet spot $15–$100). The average incumbent carries 314 reviews — the moat a new listing must climb.