# LIXIL CW-KB31

- Name: LIXIL INAX Shower Toilet CW-KB31 / INAX シャワートイレ CW-KB31 / LIXIL（INAX）温水洗净便座 CW-KB31（侧边按键·储热式）
- Brand: LIXIL / LIXIL（INAX）
- Category: Electric Bidet Seat
- Version: Japan-only model (100V, Type A plug)
- Page: https://bestjapanbuy.com/en/p/lixil-cw-kb31/
- Updated: 2026-10-23

As of 2026-10-23, the lowest online price on Kakaku.com is JP¥33,080 (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 side-panel buttons; wash strength is on the strong side for its price.

- Good for: Households with a low electrical capacity worried about tripping the breaker
- Not for: People who want a wall remote

## Price in Japan

- Japan reference price incl. tax (Lowest online price, shipping not included): JP¥33,080
- Tax-free / after refund: JP¥30,073
- Manufacturer list price (incl. tax): JP¥96,690
- Flights: OK on the plane

## Will it work? (by destination)

| Destination | Result | Notes |
| --- | --- | --- |
| Mainland China | ✗ 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 Kong | ✗ 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 |
| Macao | ✗ 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 |
| Taiwan | △ Needs an accessory | Most Japanese 100V appliances work in 110–120V regions, but heating appliances may run hot; a step-down transformer is recommended |
| Singapore | ✗ 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 Korea | ✗ 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 States | △ Needs an accessory | Most Japanese 100V appliances work in 110–120V regions, but heating appliances may run hot; a step-down transformer is recommended |
| Thailand | ✗ 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 |
| Malaysia | ✗ 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 |
| Philippines | ✗ 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 |
| Vietnam | ✗ 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 |
| Indonesia | ✗ 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 |
| India | ✗ 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 |
| Australia | ✗ 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 Zealand | ✗ 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 |
| Canada | △ 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 Kingdom | ✗ 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 |
| Germany | ✗ 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 |
| France | ✗ 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 |
| Italy | ✗ 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 |
| Spain | ✗ 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 |

## Specs

| Item | Value |
| --- | --- |
| Brand | LIXIL / LIXIL（INAX） |
| Model | CW-KB31 |
| Version | Japan-only model |
| Voltage | 100V |
| Frequency | 50/60Hz |
| Plug | Type A |
| Power | TBD |
| Battery | No built-in battery |
| Released | 2022 |
| Heating method | Tank (貯湯式) |
| Controls | Side panel (built into seat) |
| Deodorizer | Yes |
| Auto open/close lid | No |
| Annual power use | 173kWh/yr |
| Warranty in mainland China | No |
| Panel language | Japanese |

## Reviews

Third-party rating 4.21/5 (11), source: Kakaku.com (not our rating).

Pros:

- Wash strength is on the strong side for its price
- Tank heating draws little power, so it's unlikely to trip the breaker
- Dedicated bidet nozzle is more hygienic

Cons:

- The power-wash button is awkwardly placed
- Color scheme and finishing details are just average

## Frequently asked questions

### Can I use the LIXIL CW-KB31 outside Japan?

The LIXIL CW-KB31 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.

### How much is the LIXIL CW-KB31 in Japan tax-free?

As of 2026-10-23, the lowest online price on Kakaku.com is JP¥33,080 including tax. Tax-free or after the refund it is JP¥30,073. 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-KB31 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.


## Sources

- Specs: [Kakaku.com specifications page](https://kakaku.com/item/J0000038962/spec/)
- Japan price: [Kakaku.com](https://kakaku.com/item/J0000038962/) (2026-10-23)
- Rating: [Kakaku.com](https://review.kakaku.com/review/J0000038962/) (2026-10-23)

> Data from BestJapanBuy (bestjapanbuy.com). Please credit and link to the page when using it. Prices are for reference only; check in store.
> Translated with AI; the Chinese version is authoritative.