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LIXIL CW-KA31 Ad#Electric Bidet Seat · Japan-only model★4.08JP¥36,667 LIXIL CW-KA31 Installation
The math
Japan price incl. taxJP¥36,667
Tax-free price (paid in store)JP¥33,334
In USD≈ US$213
 Japan consumption tax 10% (food 8%)
Power & flights
Voltage100V
PlugType A plug
Frequency50/60Hz
FlightsOK on the plane
 Country-by-country results below
Kakaku.com rating ★ 4.08
Pros: Power mode delivers a large volume of water
Pros: Horizontal remote design is easier to use
Pros: Wide seat
Cons: Unremarkable design
Cons: Tank heating means higher annual power use
 Pros and cons summarized by us from public reviews

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LIXIL INAX Shower Toilet CW-KA31

INAX シャワートイレ CW-KA31 · Japan-only model

Price JP¥36,667 · tax-free JP¥33,334
Voltage 100V · Type A plug
Source Kakaku.com · 10-23
Electric Bidet Seat

As of 2026-10-23, the lowest online price on Kakaku.com is JP¥36,667 (incl. tax); of the 21 destinations we check, it needs an accessory (plug adapter or transformer) in 3 and will not work in 18.

INAX tank-heating model with a wall remote and a "power wash" mode that uses a lot of water.

BestJapanBuyData updated 2026-10-23 · sources at the end

Lowest online price (incl. tax) JP¥36,667 (shipping not included). At a tax-free shop you pay the tax-free price JP¥33,334 at the register (≈ US$213). How the new tax-free refund works ›

Manufacturer list price (incl. tax) JP¥108,900.

100V, Type A plug, 50/60Hz. Will it work in your country? →

Flights: OK on the plane. No battery: OK in carry-on or checked baggage (large items are best checked)

Kakaku.com rating ★ 4.08/5 (8 reviews), not our own rating.

Pros: Power mode delivers a large volume of water; Horizontal remote design is easier to use; Wide seat

Cons: Unremarkable design; Tank heating means higher annual power use

Good for: People who like a high-volume wash | Not for: People concerned about annual power consumption

Sold at major electronics stores in Japan (Bic Camera, Yodobashi Camera and others); check stock before you go. Find the nearest store.

  • #JapanShopping
  • #JapanElectricBidetSeat
  • #LIXIL
  • #TaxFreeJapan

Edited 2026-10-23 · prices for reference only · names: LIXIL INAX Shower Toilet CW-KA31 / INAX シャワートイレ CW-KA31

Japan price and tax refund

Price in Japan

Lowest online price
JP¥36,667–46,200
Manufacturer list price
JP¥108,900
Tax-free price
JP¥33,334
In USD (reference)
≈ US$213

Japan price: Kakaku.com, 2026-10-23 (shipping not included)
USD rate JP¥1 = US$0.006377 (2026-10-23) · Prices are for reference only; check in store.

How tax-free shopping works

Until Oct 31, 2026: show your passport at a tax-free shop and pay the tax-free price at the register (at least JP¥5,000 excl. tax per store per day).

Calculate the refund · New tax-free rules explained

Specs

BrandLIXIL / LIXIL（INAX）
ModelCW-KA31
VersionJapan-only model
Voltage100V
Frequency50/60Hz
PlugType A
PowerTBD
BatteryNo built-in battery
Released2022
Heating methodTank (貯湯式)
ControlsWall-mounted remote
DeodorizerYes
Auto open/close lidNo
Annual power use173kWh/yr
Warranty in mainland ChinaNo
Panel languageJapanese

Spec sources: Kakaku.com specifications page

Will it work in your country?

Based on each country's standard voltage, frequency and outlet types. Pick your country to put it at the top.

Country / regionResultWhat to know
Mainland China220V · 50Hz · Type A/I Will not work Voltage not compatible: the rated voltage doesn't cover the local voltage (e.g. a Japan-only 100V model on 200–240V will burn out); transformers are not recommended for high-wattage appliances
Hong Kong220V · 50Hz · Type G Will not work Voltage not compatible: the rated voltage doesn't cover the local voltage (e.g. a Japan-only 100V model on 200–240V will burn out); transformers are not recommended for high-wattage appliances
Different plug shape; you need a plug adapter
Macao220V · 50Hz · Type G/D Will not work Voltage not compatible: the rated voltage doesn't cover the local voltage (e.g. a Japan-only 100V model on 200–240V will burn out); transformers are not recommended for high-wattage appliances
Different plug shape; you need a plug adapter
Taiwan110V · 60Hz · Type A/B Needs an accessory Most Japanese 100V appliances work in 110–120V regions, but heating appliances may run hot; a step-down transformer is recommended
Singapore230V · 50Hz · Type G Will not work Voltage not compatible: the rated voltage doesn't cover the local voltage (e.g. a Japan-only 100V model on 200–240V will burn out); transformers are not recommended for high-wattage appliances
Different plug shape; you need a plug adapter
South Korea220V · 60Hz · Type C/F Will not work Voltage not compatible: the rated voltage doesn't cover the local voltage (e.g. a Japan-only 100V model on 200–240V will burn out); transformers are not recommended for high-wattage appliances
Different plug shape; you need a plug adapter
United States120V · 60Hz · Type A/B Needs an accessory Most Japanese 100V appliances work in 110–120V regions, but heating appliances may run hot; a step-down transformer is recommended
Thailand220V · 50Hz · Type A/B Will not work Voltage not compatible: the rated voltage doesn't cover the local voltage (e.g. a Japan-only 100V model on 200–240V will burn out); transformers are not recommended for high-wattage appliances
Malaysia240V · 50Hz · Type G Will not work Voltage not compatible: the rated voltage doesn't cover the local voltage (e.g. a Japan-only 100V model on 200–240V will burn out); transformers are not recommended for high-wattage appliances
Different plug shape; you need a plug adapter
Philippines220V · 60Hz · Type A/B Will not work Voltage not compatible: the rated voltage doesn't cover the local voltage (e.g. a Japan-only 100V model on 200–240V will burn out); transformers are not recommended for high-wattage appliances
Vietnam220V · 50Hz · Type A Will not work Voltage not compatible: the rated voltage doesn't cover the local voltage (e.g. a Japan-only 100V model on 200–240V will burn out); transformers are not recommended for high-wattage appliances
Indonesia230V · 50Hz · Type C/F Will not work Voltage not compatible: the rated voltage doesn't cover the local voltage (e.g. a Japan-only 100V model on 200–240V will burn out); transformers are not recommended for high-wattage appliances
Different plug shape; you need a plug adapter
India230V · 50Hz · Type C/D/M Will not work Voltage not compatible: the rated voltage doesn't cover the local voltage (e.g. a Japan-only 100V model on 200–240V will burn out); transformers are not recommended for high-wattage appliances
Different plug shape; you need a plug adapter
Australia230V · 50Hz · Type I Will not work Voltage not compatible: the rated voltage doesn't cover the local voltage (e.g. a Japan-only 100V model on 200–240V will burn out); transformers are not recommended for high-wattage appliances
Different plug shape; you need a plug adapter
New Zealand230V · 50Hz · Type I Will not work Voltage not compatible: the rated voltage doesn't cover the local voltage (e.g. a Japan-only 100V model on 200–240V will burn out); transformers are not recommended for high-wattage appliances
Different plug shape; you need a plug adapter
Canada120V · 60Hz · Type A/B Needs an accessory Most Japanese 100V appliances work in 110–120V regions, but heating appliances may run hot; a step-down transformer is recommended
United Kingdom230V · 50Hz · Type G Will not work Voltage not compatible: the rated voltage doesn't cover the local voltage (e.g. a Japan-only 100V model on 200–240V will burn out); transformers are not recommended for high-wattage appliances
Different plug shape; you need a plug adapter
Germany230V · 50Hz · Type C/F Will not work Voltage not compatible: the rated voltage doesn't cover the local voltage (e.g. a Japan-only 100V model on 200–240V will burn out); transformers are not recommended for high-wattage appliances
Different plug shape; you need a plug adapter
France230V · 50Hz · Type C/E Will not work Voltage not compatible: the rated voltage doesn't cover the local voltage (e.g. a Japan-only 100V model on 200–240V will burn out); transformers are not recommended for high-wattage appliances
Different plug shape; you need a plug adapter
Italy230V · 50Hz · Type C/F/L Will not work Voltage not compatible: the rated voltage doesn't cover the local voltage (e.g. a Japan-only 100V model on 200–240V will burn out); transformers are not recommended for high-wattage appliances
Different plug shape; you need a plug adapter
Spain230V · 50Hz · Type C/F Will not work Voltage not compatible: the rated voltage doesn't cover the local voltage (e.g. a Japan-only 100V model on 200–240V will burn out); transformers are not recommended for high-wattage appliances
Different plug shape; you need a plug adapter

Flights (all destinations): OK on the plane: No battery: OK in carry-on or checked baggage (large items are best checked)

This model: 100V. Results follow published standards; some buildings or hotels may differ.

Overseas vs Japan-only model

No counterpart model listed yet.

Reviews

Third-party rating: 4.08 / 5 (8 reviews)
Rating source: Kakaku.com, 2026-10-23
The rating comes from a third-party site and is not our own. Pros and cons are our summary of public reviews.

Pros

  • Power mode delivers a large volume of water
  • Horizontal remote design is easier to use
  • Wide seat

Cons

  • Unremarkable design
  • Tank heating means higher annual power use

Where to buy

In Japan

Sold at major electronics stores in Japan (Bic Camera, Yodobashi Camera and others); check stock before you go.

Find the nearest store

Japanese phrases to show staff · Checkout checklist · Calculate the price after refund

Frequently asked questions

Can I use the LIXIL CW-KA31 outside Japan?

The LIXIL CW-KA31 is 100V with a Type A plug. Of the 21 destinations we check, it needs an accessory (plug adapter or transformer) in 3 and will not work in 18. See the table "Will it work in your country?" on this page for each country and region.

How much is the LIXIL CW-KA31 in Japan tax-free?

As of 2026-10-23, the lowest online price on Kakaku.com is JP¥36,667 including tax. Tax-free or after the refund it is JP¥33,334. From Nov 1, 2026, you pay the tax-included price in store and get the tax refunded when you leave Japan (a fee may apply).

Where can I buy the LIXIL CW-KA31 in Japan?

Sold at major electronics stores in Japan (Bic Camera, Yodobashi Camera and others); check stock before you go. The price we list is from Kakaku.com (2026-10-23); prices in store may differ.

Related Q&A

Sources

Updated 2026-10-23Prices are for reference only; check in store.MarkdownJSON