---
title: "Tks05301j — ¥14.2M/yr Amazon JP Niche (2026) - Flapen"
canonical_url: "https://flapen.com/research/jp/diy/tks05301j"
last_updated: "2026-08-08T10:13:23.885Z"
locale: en
meta:
description: "Niche score 50/100 · ¥14.2M/yr market · 13K searches/yr. A concentrated shelf (top 5 take 100% of clicks) keeps it on the watch list. Data updated Jul 2026."
"og:description": "Niche score 50/100 · ¥14.2M/yr market · 13K searches/yr. A concentrated shelf (top 5 take 100% of clicks) keeps it on the watch list. Data updated Jul 2026."
"og:title": "Tks05301j — ¥14.2M/yr Amazon JP Niche (2026) - Flapen"
---
# **tks05301j**
**Worth a look**
Shows a $14.2M/yr market, but a concentrated shelf (top 5 take 100% of clicks) keeps it on the watch list.
Market size 100Growth 21Conversion 83Competition 0Returns 98Price range 0Avg price 0Brand share 0Review moat 94Quality gap 92
**Market size**
**Incredible****¥14.2M**
¥14.2M/yr · 13K searches
**Returns**
**Incredible****0.4%**
return rate — above 5% kills the launch gate
**Review moat**
**Great****117.25**
avg incumbent reviews — the moat a new listing must climb
**Quality gap**
**Great****4.0★**
avg incumbent rating — lower means beatable quality
**Conversion**
**Great****8.9%**
search→purchase rate — share of searches ending in a sale
**Growth**
**Bad****-8.1%**
90-day search growth — must beat 0% to launch
**Competition**
**Bad****100%**
top-5 click share — a locked-up shelf
**Brand share**
**Bad****100%**
top-5 brand share — brand-locked demand
**Avg price**
**Bad****¥12371.77**
avg listing price — sweet spot $15–$100
**Price range**
**Bad****¥10248.13–¥16753.72**
cheapest to priciest tracked listing — scored on the share inside $15–$100
**Signals**[** Low Review Barrier**](https://flapen.com/research/niches?market=jp&signal=low_review_barrier "Top brand's reviews < 500") [** High Price**](https://flapen.com/research/niches?market=jp&signal=high_price "Avg price > $50")
According to Flapen's Amazon Japan niche tracking, tks05301j is a ¥14.2M/yr Amazon Japan market (13K searches/yr). The top 5 brands hold 100% of demand. Demand peaks in Dec. Verdict: Worth a look — 50/100.
Data updated Jul 30, 2026 · scored weekly · [~~How we score niches ~~](https://flapen.com/research/methodology)
## **tks05301j market data**
- **Units sold / yr**
- **1K–1K**
- avg 100–250/product
- **Revenue / yr**
- **¥12.4M–¥15.5M**
- units × avg price
- **Conversion rate**
- **8.9%**
- **Avg BSR**
- **#175**
- **Page quality**
- **0%**
- **Prime**
- **50%**
- **Sponsored**
- **25%**
- **Out of stock**
- **41.8%**
- **Avg brand age**
- **87 months**
- **Avg seller age**
- **157 days**
## **Competition & brand share**
The top 5 products capture 100% of clicks — a locked-up shelf that new listings rarely crack.
**Brands**
**2 **▼falling
**Sellers**
**70**
**Top-5 brand share**
**100%**
Top 20: 100%
**Top-5 click share**
**100%**
Top 20: 100%
**Open market**
**0%**
- TOTO82% - ノーブランド品18%
## **Demand & seasonality**
Weekly Amazon search volume, last 104 weeks — -8.1% search growth over the last 90 days.
400300Spike '24Black Friday '24Holiday '24Prime Day '25Spike '25Black Friday '25Holiday '25Spike '26 seasonSepDecMarJunAugNovMarMay
Peak months: Dec · busiest ÷ quietest = 1.8×
[**Open Trend **](https://flapen.com/research/jp/diy/tks05301j/trend)
## **Top tks05301j products on Amazon**
All 4 tracked products in this niche — three views at once, no toggling.
### **Top sellers**
by 90-day click share
[1**TOTO キッチン水栓 TKS05301J**TOTO**¥11778.70**4.2★448 rev](https://www.amazon.co.jp/dp/B07PTHP7FF) [2**キッチン用 混合水栓 台付1穴 一般地・寒冷地 TKS05301J**ノーブランド品**¥16753.72**0.0★0 rev](https://www.amazon.co.jp/dp/B0DXC5SVS8) [3**TOTO 台付キッチン用水栓 一般地寒冷地共用 TKY01301J**TOTO**¥10248.13**3.9★21 rev](https://www.amazon.co.jp/dp/B082DVX9L5) [4**水栓 台付1穴 一般地・寒冷地共用 TKS05301J**ノーブランド品**¥10706.51**0.0★0 rev](https://www.amazon.co.jp/dp/B0FTVQ3NCT)
### **Newest**
by launch date
[**水栓 台付1穴 一般地・寒冷地共用 TKS05301J**ノーブランド品**¥10706.51**0 rev9mo ago](https://www.amazon.co.jp/dp/B0FTVQ3NCT) [**キッチン用 混合水栓 台付1穴 一般地・寒冷地 TKS05301J**ノーブランド品**¥16753.72**0 rev1y ago](https://www.amazon.co.jp/dp/B0DXC5SVS8) [**TOTO 台付キッチン用水栓 一般地寒冷地共用 TKY01301J**TOTO**¥10248.13**21 rev6y ago](https://www.amazon.co.jp/dp/B082DVX9L5) [**TOTO キッチン水栓 TKS05301J**TOTO**¥11778.70**448 rev7y ago](https://www.amazon.co.jp/dp/B07PTHP7FF)
### **Trending**
90-day click momentum
[**キッチン用 混合水栓 台付1穴 一般地・寒冷地 TKS05301J**ノーブランド品**¥16753.72**0.0★**— 8%**](https://www.amazon.co.jp/dp/B0DXC5SVS8) [**TOTO キッチン水栓 TKS05301J**TOTO**¥11778.70**4.2★**— 1%**](https://www.amazon.co.jp/dp/B07PTHP7FF) [**TOTO 台付キッチン用水栓 一般地寒冷地共用 TKY01301J**TOTO**¥10248.13**3.9★**— 6%**](https://www.amazon.co.jp/dp/B082DVX9L5) [**水栓 台付1穴 一般地・寒冷地共用 TKS05301J**ノーブランド品**¥10706.51**0.0★**▼ 25%**](https://www.amazon.co.jp/dp/B0FTVQ3NCT)
## **What buyers say about tks05301j**
What buyers praise and complain about, mined from review topics.
### **What buyers complain about **
**漏れ防止**50%
*“5年近く使用後根元から水漏れ。”*
**接続性 - 全体**33%
*“接続時に失くしやすいです。”*
**コストパフォーマンス**17%
*“品物+作業代に加えて結構な金額がかかる時があります”*
### **Top return reasons **
**組み立て/インストール**29%
**互換性-全体**21%
**追加アイテム/添付ファイル**14%
**不良材料/部品**14%
**メカニズムの問題**7%
**接続性 - 全体**7%
**強さ**7%
## **Common questions**
- **Is tks05301j profitable to sell on Amazon Japan?**
- The niche generates ¥14.2M/yr across 4 tracked products. 0 of 1 products launched in the last 360 days are still selling. 90-day search growth is -8.1%. Flapen's verdict: Worth a look (50/100).
- **How competitive is the tks05301j niche?**
- 2 brands and 70 sellers compete. The top 5 products take 100% of clicks and top 5 brands hold 100% of demand.
- **What do buyers complain about in tks05301j?**
- Top complaints mined from reviews: 漏れ防止, 接続性 - 全体, コストパフォーマンス. The return rate is 0.4%.
- **When does demand for tks05301j peak?**
- Demand peaks in Dec; the busiest month runs 1.8× the quietest.
- **What does it cost to enter the tks05301j niche?**
- Listings span ¥10248.13–¥16753.72; the average listing price is ¥12371.77 (sweet spot $15–$100). The average incumbent carries 117 reviews — the moat a new listing must climb.
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