Is tcm1788 profitable to sell on Amazon Japan?

The niche generates ¥2.6M/yr across 14 tracked products. 6 of 6 products launched in the last 360 days are still selling. 90-day search growth is +91.8%. Flapen's verdict: Launch it (67/100).

How competitive is the tcm1788 niche?

10 brands and 23 sellers compete. The top 5 products take 69% of clicks and top 5 brands hold 79% of demand.

When does demand for tcm1788 peak?

Demand peaks in Jun–Jul; the busiest month runs 2.5× the quietest.

What does it cost to enter the tcm1788 niche?

Listings span ¥868.82–¥2077.61; the average listing price is ¥1529.02 (sweet spot $15–$100). The average incumbent carries 127 reviews — the moat a new listing must climb.

tcm1788

Launch it

A $2.6M/yr market growing +91.8% this quarter with returns at 0.2% — clears our launch bar.

Returns

Incredible0.2%

return rate — above 5% kills the launch gate

Market size

Incredible¥2.6M

¥2.6M/yr · 18K searches

Review moat

Great126.5

avg incumbent reviews — the moat a new listing must climb

Growth

Great+91.8%

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

Conversion

Great9.6%

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

Quality gap

Great4.2★

avg incumbent rating — lower means beatable quality

Brand share

Okay79%

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

Competition

Okay69%

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

Avg price

Bad¥1529.02

avg listing price — sweet spot $15–$100

Price range

Bad¥868.82–¥2077.61

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

Signals Low Review Barrier High Price

According to Flapen's Amazon Japan niche tracking, tcm1788 is a ¥2.6M/yr Amazon Japan market (18K searches/yr). The top 5 brands hold 79% of demand. Demand peaks in Jun–Jul. Verdict: Launch it — 67/100.

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

tcm1788 market data

Units sold / yr: 2K–2K; avg 0–100/product
Revenue / yr: ¥2.3M–¥3.1M; units × avg price
Conversion rate: 9.6%
Avg BSR: #14
Page quality: 0%
Prime: 100%
Sponsored: 79%
Out of stock: 6.7%
Avg brand age: 22 months
Avg seller age: 195 days

Competition & brand share

The top 5 products take 69% of clicks — established leaders, but buyers still shop beyond them.

Brands

10 rising

Sellers

Top-5 brand share

79%

Top 20: 100%

Top-5 click share

69%

Top 20: 100%

Open market

16%

YAIBUDE27%
TOTO26%
Hopelife11%
X.D.BOLO9%
PUREBURG6%
ルイチ RUICH5%
Open — no brand owns it (4 brands, 16%)

Demand & seasonality

Weekly Amazon search volume, last 104 weeks — +91.8% search growth over the last 90 days.

Peak months: Jun, Jul · busiest ÷ quietest = 2.5×

Open Trend

Top tcm1788 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.

Beatable (≤4.3★) Contested Strong incumbent (>4.7★)

All 14 tracked products in this niche — three views at once, no toggling.

Top sellers

by 90-day click share

TCM1788 / TCA83-9S / TCA83-9R 交換フィルター toto対応脱臭カートリッジウォシュレット用触媒組品脱臭カートリッジ (1個入り) 温水洗浄便用触媒組品空間消臭長持ち設計

YAIBUDE¥868.824.1★88 rev

TOTO 脱臭カートリッジホワイト奥行6.2×高さ2.4×幅3.8cm TCM1788

TOTO¥1720.294.3★522 rev

脱臭カートリッジ TCM1788 【２個入】 TCA83-9S TCA83-9R に対応ウォシュレット用触媒組品本体: 奥行6.2cm 本体: 高さ2.4cm 本体: 幅3.8cm (２個入り)

Hopelife¥1684.764.0★103 rev

4個 toto 脱臭カートリッジウォシュレット TCM1788 TCA83-9S TCA83-9R 対応メンテナンスパーツ互換品消耗品温水洗浄便座用交換部品

X.D.BOLO¥2077.614.6★25 rev

ルイチ RUICH 脱臭カートリッジ TCA83-8R / TCM1788 / TCA83-9S / TCA83-9R TOTO ウォシュレット用触媒組品（４個入り/互換品）TCF2121、TCF5502シリーズ、TCF584R、TCF6321シリーズ、TCF6331シリーズ、TCF6421、CES9134シリーズ、CES9422シリーズ、CES9432シリーズ、他に対応

ルイチ RUICH¥2035.334.2★45 rev

Newest

by launch date

ウォシュレット用触媒組品 TOTOに適合脱臭カートリッジ TCA83-8/TCA83-6R/TCA83-5R/TCA83-2R/TCA83-1R/TCA104-2/TCF9413/TCA104-1S 交換用脱臭フィルター奥行6.2cm 高さ3.4cm 幅3.8cm 切り替え手袋付き非純正品【1個セット】

Motronic¥1246.8914 rev

10mo ago

ルイチ RUICH¥2035.3345 rev

10mo ago

YAIBUDE¥868.8288 rev

10mo ago

脱臭カートリッジ TCM1788/TCA83-8R/TCA83-9S / TCA83-9R 交換フィルター温水洗浄便用触媒組品空間消臭長持ち設計 2個入

YAIBUDE¥1444.7588 rev

10mo ago

TOTO ウォシュレット用触媒組品 TCA83-9R/TCA83-9S/TCM1788 脱臭カートリッジニオイ浄化 2個入

CPLIKE¥1375.2556 rev

10mo ago

Common questions

Is tcm1788 profitable to sell on Amazon Japan?: The niche generates ¥2.6M/yr across 14 tracked products. 6 of 6 products launched in the last 360 days are still selling. 90-day search growth is +91.8%. Flapen's verdict: Launch it (67/100).
How competitive is the tcm1788 niche?: 10 brands and 23 sellers compete. The top 5 products take 69% of clicks and top 5 brands hold 79% of demand.
When does demand for tcm1788 peak?: Demand peaks in Jun–Jul; the busiest month runs 2.5× the quietest.
What does it cost to enter the tcm1788 niche?: Listings span ¥868.82–¥2077.61; the average listing price is ¥1529.02 (sweet spot $15–$100). The average incumbent carries 127 reviews — the moat a new listing must climb.

tcm1788

tcm1788 market data

Competition & brand share

Demand & seasonality

Top tcm1788 products on Amazon

Top sellers

Newest

Trending

Common questions

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