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51

シャワーホース 1.8m

Worth a look

Shows low returns (1.0%), but pricing outside the sweet spot ($2422.46 avg) keeps it on the watch list.

Market size 70Growth 32Conversion 36Competition 50Returns 94Price range 0Avg price 0Brand share 32Review moat 59Quality gap 92

Returns

Great1.0%

return rate — above 5% kills the launch gate

Quality gap

Great4.0★

avg incumbent rating — lower means beatable quality

Market size

Good¥728K

¥728K/yr · 11K searches

Review moat

Good1,143.77

avg incumbent reviews — the moat a new listing must climb

Competition

Okay55%

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

Conversion

Okay2.9%

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

Growth

Okay+5.9%

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

Brand share

Okay86%

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

Avg price

Bad¥2422.46

avg listing price — sweet spot $15–$100

Price range

Bad¥667.09–¥4501.47

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

According to Flapen's Amazon Japan niche tracking, シャワーホース 1.8m is a ¥728K/yr Amazon Japan market (11K searches/yr). The top 5 brands hold 86% of demand. Demand peaks in Oct–Dec. Verdict: Worth a look — 51/100.

Data updated Jul 30, 2026 · scored weekly · How we score niches

シャワーホース 1.8m market data

Units sold / yr
250–500
avg 0–100/product
Revenue / yr
¥606K–¥1.2M
units × avg price
Conversion rate
2.9%
Avg BSR
#45
Page quality
0%
Prime
95%
Sponsored
59%
Out of stock
13.5%
Avg brand age
46 months
Avg seller age
180 days

Competition & brand share

The top 5 products take 55% of clicks — established leaders, but buyers still shop beyond them.

Brands

10 flat

Sellers

78

Top-5 brand share

86%

Top 20: 100%

Top-5 click share

55%

Top 20: 98%

Open market

10%

  • SANEI(サンエイ)35%
  • OFFO28%
  • KVK11%
  • 日丸屋製作所8%
  • アラミック (Arromic)4%
  • imainurama4%
  • Open — no brand owns it (4 brands, 10%)

Demand & seasonality

Weekly Amazon search volume, last 104 weeks — +5.9% search growth over the last 90 days.
500300Spike '24Holiday '24Spike '25Prime Day '25Black Friday '25Spike '26SepDecMarJunAugNovMarMay

Peak months: Oct, Dec · busiest ÷ quietest = 1.7×

Top シャワーホース 1.8m 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%¥73K20%¥146K30%¥218K40%¥291K1101001K10K Reviews — right = deep review moat Market share (90d) ≈ est. sales
Beatable (≤4.3★) Contested Strong incumbent (>4.7★)

All 22 tracked products in this niche — three views at once, no toggling.

What buyers say about シャワーホース 1.8m

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

What buyers love

使用の容易さ17%

“普通に使えます”

軽い13%

“かなり軽い”

組み立て/インストール10%

“見た目もキレイで特に問題無くアダプターを使用する事も無く取り付けが出来た。”

コストパフォーマンス9%

“コスパ最強”

柔らかい感触8%

“このステンレスホースはゴムホースよりも柔らかくて扱いやすくて好きです。”

総合品質5%

“見た目と実用性を兼ね備えた良い商品なので、オススメです。”

漏れ防止4%

“水漏れなし”

サイズ全体4%

“日本のシャワーブラケットにベストフィットです。”

耐久性3%

“耐久性に期待します。”

快適さ-全体2%

“取り付けも問題なく、快適に使えています。”

What buyers complain about

漏れ防止16%

“水漏れ。”

サイズ全体10%

“小さい”

耐久性9%

“2年持たずにホース金属部の継ぎ目から水漏れ。”

厚み9%

“ちょっと細い”

総合品質4%

“悪くもないが良くもない”

コストパフォーマンス3%

“満足度はお値段以下”

使用の容易さ2%

“扱いづらかったのでこの商品を購入。”

水に強い1%

“節水シャワーヘッド使う場合は要注意ですね”

材料の品質1%

“アダプターがプラスチック製で、水漏れしました。”

追加アイテム/添付ファイル1%

“アタッチメント替えても漏れ”

Top return reasons

サイズ全体27%
漏れ防止24%
互換性-全体9%
追加アイテム/添付ファイル6%
接続性 - 全体6%
広告と実際の製品の違い5%
不良材料/部品4%
薄い2%
総合品質2%
厚み2%

Common questions

Is シャワーホース 1.8m profitable to sell on Amazon Japan?
The niche generates ¥728K/yr across 22 tracked products. 4 of 5 products launched in the last 360 days are still selling. 90-day search growth is +5.9%. Flapen's verdict: Worth a look (51/100).
How competitive is the シャワーホース 1.8m niche?
10 brands and 78 sellers compete. The top 5 products take 55% of clicks and top 5 brands hold 86% of demand.
What do buyers complain about in シャワーホース 1.8m?
Top complaints mined from reviews: 漏れ防止, サイズ全体, 耐久性. The return rate is 1.0%.
When does demand for シャワーホース 1.8m peak?
Demand peaks in Oct–Dec; the busiest month runs 1.7× the quietest.
What does it cost to enter the シャワーホース 1.8m niche?
Listings span ¥667.09–¥4501.47; the average listing price is ¥2422.46 (sweet spot $15–$100). The average incumbent carries 1,144 reviews — the moat a new listing must climb.