---
title: "Toilet Flange Extender Kit — $104K/yr Amazon US Niche (2026) - Flapen"
canonical_url: "https://flapen.com/research/us/tools-home-improvement/toilet-flange-extender-kit"
last_updated: "2026-08-08T13:06:47.576Z"
locale: en
meta:
description: "Niche score 37/100 · $104K/yr market · 49K searches/yr · $22.23 avg price. Doesn't clear our bar today. Data updated Jul 2026."
"og:description": "Niche score 37/100 · $104K/yr market · 49K searches/yr · $22.23 avg price. Doesn't clear our bar today. Data updated Jul 2026."
"og:title": "Toilet Flange Extender Kit — $104K/yr Amazon US Niche (2026) - Flapen"
---
# **toilet flange extender kit**
**Skip it**
Brand-locked demand (top 5 brands take 100% of clicks) — this niche doesn't clear our bar today.
Market size 26Growth 22Conversion 85Competition 13Returns 14Price range 74Avg price 93Brand share 0Review moat 84Quality gap 48
**Avg price**
**Great****$22.23**
avg listing price — sweet spot $15–$100
**Conversion**
**Great****9.6%**
search→purchase rate — share of searches ending in a sale
**Review moat**
**Great****314.3**
avg incumbent reviews — the moat a new listing must climb
**Price range**
**Good****$8.02–$34.44**
cheapest to priciest tracked listing — scored on the share inside $15–$100
**Quality gap**
**Okay****4.5★**
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**
**Bad****8.0%**
return rate — above 5% kills the launch gate
**Competition**
**Bad****84%**
top-5 click share — a locked-up shelf
**Brand share**
**Bad****100%**
top-5 brand share — brand-locked demand
**Signals**[** High Returns**](https://flapen.com/research/niches?market=us&signal=high_returns "Return rate > 5%")
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 ~~](https://flapen.com/research/methodology)
## **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.
2K1KSpike '25Black Friday '25 seasonJanFebMarAprMayJunJulAugSepOctNovDecJanFebMarAprMayJun
Peak months: Aug · busiest ÷ quietest = 1.5×
[**Open Trend **](https://flapen.com/research/us/tools-home-improvement/toilet-flange-extender-kit/trend)
## **Top toilet flange extender kit search terms**
- **toilet flange extender**28K/yr-7.6%6.9% conv. - **toilet flange spacer**9K/yr-4.2%5.5% conv. - **toilet flange extender kit**5K/yr+74.0%7.8% conv. - **toilet flange extension kit**7K/yr-36.0%6.6% conv. [**All search terms **](https://flapen.com/research/us/tools-home-improvement/toilet-flange-extender-kit/search-terms)
## **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.
0%15%$16K30%$31K45%$47K60%$62K101001K10K Reviews — right = deep review moatMarket share (90d) ≈ est. sales
Beatable (≤4.3★) Contested Strong incumbent (>4.7★)
All 10 tracked products in this niche — three views at once, no toggling.
### **Top sellers**
by 90-day click share
[1**Oatey Toilet Flange Extender Kit 1/4- 1 5/8 in Red and Yellow**Oatey**$22.93**4.5★1,167 rev](https://www.amazon.com/dp/B0025VS1US) [2**Oatey 43646 Closet Flange Spacer 1/2 in T PVC White 0.5 Inch**Oatey**$8.02**4.7★219 rev](https://www.amazon.com/dp/B0069KXSUY) [3**Oatey 43645 Closet Flange Spacer Kit with Gaskets 1/2 in. Spacer Closet Bolts and Shims**Oatey**$14.97**4.6★126 rev](https://www.amazon.com/dp/B005053LEW) [4**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**$29.66**4.4★460 rev](https://www.amazon.com/dp/B0CPVVMT1K) [5**Oatey 43401 Set-Rite Toilet Flange Extender Kit 1/4 - 1 Red Yellow**Oatey**$34.44**4.6★248 rev](https://www.amazon.com/dp/B06XRKZWL5)
**~~View all top sellers →~~**
### **Newest**
by launch date
[**RAINGOWN Toilet Flange Repair Kit with 16in Hose and Wax-Free Seal**RAINGOWN**$25.39**105 rev11mo ago](https://www.amazon.com/dp/B0FPFKSWY7) [**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**$29.66**460 rev2y ago](https://www.amazon.com/dp/B0CPVVMT1K) [**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**$29.34**335 rev2y ago](https://www.amazon.com/dp/B0CPVVTTTP) [**Oatey 43401 Set-Rite Toilet Flange Extender Kit 1/4 - 1 Red Yellow**Oatey**$34.44**248 rev9y ago](https://www.amazon.com/dp/B06XRKZWL5) [**Oatey 43405 Set-Rite Toilet Flange Extender only 1 size Yellow**Oatey**$14.19**39 rev9y ago](https://www.amazon.com/dp/B06XR5JF49)
**~~View all new products →~~**
### **Trending**
90-day click momentum
[**RAINGOWN Toilet Flange Repair Kit with 16in Hose and Wax-Free Seal**RAINGOWN**$25.39**4.2★**▲ 175%**](https://www.amazon.com/dp/B0FPFKSWY7) [**Oatey 43405 Set-Rite Toilet Flange Extender only 1 size Yellow**Oatey**$14.19**4.1★**▲ 35%**](https://www.amazon.com/dp/B06XR5JF49) [**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**$29.66**4.4★**▲ 34%**](https://www.amazon.com/dp/B0CPVVMT1K) [**Oatey 43645 Closet Flange Spacer Kit with Gaskets 1/2 in. Spacer Closet Bolts and Shims**Oatey**$14.97**4.6★**— 10%**](https://www.amazon.com/dp/B005053LEW) [**Oatey 43404 Set-Rite 1/4 in. to 3/8 Extender Toilet Flange Extension Kit Red Yellow**Oatey**$17.43**4.6★**— 8%**](https://www.amazon.com/dp/B06XR46B9S)
**~~View all trending →~~**
## **What buyers say about toilet flange extender kit**
What buyers praise and complain about, mined from review topics.
### **What buyers love **
**Assembly/Installation**29%
*“Easy install”*
**Advertised Vs Actual Product**13%
*“Works as advertised”*
**Quality-Overall**8%
*“Great toilet flange kit”*
**Efficiency**7%
*“Works great”*
**Ease Of Use**6%
*“Easy to use”*
**Value For Money**6%
*“Worth The Price”*
**Leak-Proof**5%
*“no leaks”*
**Maintenance And Repair**4%
*“Terrific repair kit - all needed pieces needed in the order”*
**Size-Overall**3%
*“Perfect Fit”*
**Floor Protection**2%
*“Save me from demolishing the floor and re-tiling”*
### **What buyers complain about **
**Functionality-Overall**13%
*“Doesnt work”*
**Product Condition**11%
*“Product arrived appeared to be opened previously”*
**Rusts/Corrodes**10%
*“one was rusted out”*
**Quality-Overall**6%
*“garbage”*
**Value For Money**6%
*“For the price I woukd not recommend”*
**Defective Material/Parts**6%
*“Unfortunately, the product did not hold up as I wouldve hoped”*
**Compatibility-Overall**6%
*“Doesn't work with TOTO toliets”*
**Advertised Vs Actual Product**6%
*“Falsely advised”*
**Assembly/Installation**5%
*“would not allow full installation”*
**Size-Overall**5%
*“Didn't fit”*
### **Top return reasons **
**Size-Overall**43%
**Compatibility-Overall**15%
**Add-Ons/Attachments**6%
**Advertised Vs Actual Product**6%
**Functionality-Overall**5%
**Defective Material/Parts**5%
**Assembly/Installation**3%
**Value For Money**2%
**Product Condition**2%
**Leak-Proof**2%
## **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.
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