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50

tower 排水口

Worth a look

Shows low returns (0.4%), but brand-locked demand (top 5 brands take 100% of clicks) keeps it on the watch list.

Market size 97Growth 37Conversion 54Competition 12Returns 98Price range 0Avg price 0Brand share 0Review moat 91Quality gap 88

Returns

Incredible0.4%

return rate — above 5% kills the launch gate

Market size

Incredible¥3.9M

¥3.9M/yr · 57K searches

Review moat

Great180.6

avg incumbent reviews — the moat a new listing must climb

Quality gap

Great4.1★

avg incumbent rating — lower means beatable quality

Conversion

Good4.5%

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

Growth

Okay+9.4%

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

Competition

Bad86%

top-5 click share — a locked-up shelf

Brand share

Bad100%

top-5 brand share — brand-locked demand

Avg price

Bad¥1553.01

avg listing price — sweet spot $15–$100

Price range

Bad¥774.43–¥2477.10

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

According to Flapen's Amazon Japan niche tracking, tower 排水口 is a ¥3.9M/yr Amazon Japan market (57K searches/yr). The top 5 brands hold 100% of demand. Verdict: Worth a look — 50/100.

Data updated Jul 31, 2026 · scored weekly · How we score niches

tower 排水口 market data

Units sold / yr
3K–3K
avg 250–500/product
Revenue / yr
¥3.9M–¥4.7M
units × avg price
Conversion rate
4.5%
Avg BSR
#23
Page quality
0%
Prime
80%
Sponsored
80%
Out of stock
2.3%
Avg brand age
32 months
Avg seller age
190 days

Competition & brand share

The top 5 products capture 86% of clicks — a locked-up shelf that new listings rarely crack.

Brands

3 falling

Sellers

30

Top-5 brand share

100%

Top 20: 100%

Top-5 click share

86%

Top 20: 100%

Open market

0%

  • Yamazaki(山崎実業)93%
  • MAMAGO4%
  • FULNG3%

Demand

Weekly Amazon search volume, last 42 weeks — +9.4% search growth over the last 90 days.
3K2KSpike '25Black Friday '25Spike '26Prime Day '26Oct '25Nov '25Jan '26Mar '26Apr '26Jun '26

Top tower 排水口 search terms

  • tower 排水口12K/yr
  • 山崎実業 排水口17K/yr
  • 山崎実業 排水溝8K/yr
  • tower 排水溝4K/yr
  • タワー 排水口3K/yr
  • 山崎実業 はいすいこう カバー3K/yr
  • 山崎実業 排水口カバー3K/yr
  • タワー 排水溝3K/yr
  • 山崎実業 排水溝カバー3K/yr
All search terms

Top tower 排水口 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%10%¥394K20%¥789K30%¥1.2M40%¥1.6M1101001K 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 10 tracked products in this niche — three views at once, no toggling.

What buyers say about tower 排水口

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

What buyers love

清掃の容易さ32%

“お手入れ楽”

使用の容易さ28%

“Simple is the best”

総合品質6%

“すごく良い商品”

デザイン全体5%

“表面のステンレスはサイズもピッタリで、見た目もスッキリして良い感じなのですが”

コストパフォーマンス4%

“価格と機能”

サイズ全体3%

“表面のステンレスはサイズもピッタリで、見た目もスッキリして良い感じなのですが”

快適さ-全体3%

“安心感”

匂い2%

“ステンレスなので臭い、汚れなどつきにくく衛生的です。”

強さ2%

“しっかりした作りで、ネットもつけてくれるので、ありがたいです。”

生锈/腐食する1%

“ステンレスなので錆びにくいとは思いますが今後に期待です。”

What buyers complain about

サイズ全体16%

“サイズが合わなかった方”

清掃の容易さ12%

“また、ネットを引っ掛ける溝に食品がつき掃除が大変。”

使用の容易さ9%

“溝にネットを掛けずらく、結局使わなくなってしまったので「ただ汚れが溜まりやすいだけで役に立たない溝」が増えただけ。”

ジャミング/詰まり9%

“すぐ詰まる”

コストパフォーマンス6%

“コスパ悪く 結局元通りになりました。”

重い4%

“本体に重さを感じます♫”

漏れ防止4%

“ネットの網目が広がりダダ漏れ、意味なし。”

硬い感覚3%

“にくいやつ笑”

商品の状態2%

“中古品でした”

総合品質2%

“ゴミがたくさん入っていい商品”

Top return reasons

サイズ全体72%
互換性-全体5%
不良材料/部品4%
広告と実際の製品の違い3%
商品の状態2%
傷に強い2%
組み立て/インストール1%
形状/スタイル1%
機能全体1%
清掃の容易さ1%

Common questions

Is tower 排水口 profitable to sell on Amazon Japan?
The niche generates ¥3.9M/yr across 10 tracked products. 7 of 7 products launched in the last 360 days are still selling. 90-day search growth is +9.4%. Flapen's verdict: Worth a look (50/100).
How competitive is the tower 排水口 niche?
3 brands and 30 sellers compete. The top 5 products take 86% of clicks and top 5 brands hold 100% of demand.
What do buyers complain about in tower 排水口?
Top complaints mined from reviews: サイズ全体, 清掃の容易さ, 使用の容易さ. The return rate is 0.4%.
What does it cost to enter the tower 排水口 niche?
Listings span ¥774.43–¥2477.10; the average listing price is ¥1553.01 (sweet spot $15–$100). The average incumbent carries 181 reviews — the moat a new listing must climb.