---
product_id: 444858091
title: "TTHU805 Washlet Connection Adapter Kit In-Wall Tank System N/A"
price: "¥21677"
currency: JPY
in_stock: true
reviews_count: 4
url: https://www.desertcart.jp/products/444858091-tthu805-washlet-connection-adapter-kit-in-wall-tank-system-n
store_origin: JP
region: Japan
---

# 1/2-in straight shutoff valve Exact fit for TOTO Washlet Compact 9x6.25x5.75 inch design TTHU805 Washlet Connection Adapter Kit In-Wall Tank System N/A

**Price:** ¥21677
**Availability:** ✅ In Stock

## Summary

> 🚿 Connect with Confidence: The missing link your TOTO Washlet deserves!

## Quick Answers

- **What is this?** TTHU805 Washlet Connection Adapter Kit In-Wall Tank System N/A
- **How much does it cost?** ¥21677 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.jp](https://www.desertcart.jp/products/444858091-tthu805-washlet-connection-adapter-kit-in-wall-tank-system-n)

## Best For

- Customers looking for quality international products

## Why This Product

- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Space-Smart Design:** Compact dimensions optimize installation in tight bathroom spaces without compromising performance.
- • **Trusted TOTO Quality:** Crafted by the industry leader in bathroom innovation, combining elegance with functional brilliance.
- • **Durable Shutoff Control:** 1/2-inch straight shutoff valve provides reliable water flow management, giving you peace of mind and easy maintenance.
- • **Precision Fit, Zero Hassle:** Engineered for seamless integration with TOTO In-Wall Tank Washlets, ensuring a perfect connection every time.
- • **Upgrade Your Bathroom Setup:** Essential accessory for maintaining your premium bidet system—don’t let a missing adapter hold you back.

## Overview

The TOTO TTHU805 Washlet Connection Adapter Kit features a 1/2-inch straight shutoff valve designed for precise, hassle-free installation with TOTO In-Wall Tank Washlet systems. Compact and durable, this adapter ensures reliable water control and seamless integration, making it an essential upgrade for maintaining your premium bidet experience.

## Description

A lot of life happens in the bathroom. So at TOTO, we design simple, brilliant, elegant solutions for basic human needs. Every TOTO innovation has a single motivation: helping people feel cleaner and more alive.

Review: This was an exact fit - Customer had bought a new electric bidet but lost the fitting. This was the exact fit replacement!
Review: Necessary ripoff - Works but total ripoff. Why is it not included in the washlet???

## Features

- 1/2-in straight shutoff valve kit

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Manufacturer | TOTO |
| Part Number | THU805 |
| Item Weight | 12 ounces |
| Product Dimensions | 9 x 6.25 x 5.75 inches |
| Item model number | THU805 |
| Color | Unfinished |
| Item Package Quantity | 1 |
| Included Components | Product Only |
| Batteries Included? | No |
| Batteries Required? | No |

## Images

![TTHU805 Washlet Connection Adapter Kit In-Wall Tank System N/A - Image 1](https://m.media-amazon.com/images/I/51qiu2NWzoL.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ This was an exact fit
*by T***N on September 28, 2024*

Customer had bought a new electric bidet but lost the fitting. This was the exact fit replacement!

### ⭐⭐ Necessary ripoff
*by P***. on June 13, 2026*

Works but total ripoff. Why is it not included in the washlet???

### ⭐⭐⭐ Non-industry standard sizing
*by U***C on December 15, 2025*

While I have had no issues with this part, it is very frustrating that Toto is taking advantage of people. This product is completely over-priced because they are using a non-industry standard size. In my opinion, this part should have been included with my Toto seat that I purchased, ridiculous that this is sold separately and there was no way to use the seat without coming here to buy the additional part.

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**Shop now:** [https://www.desertcart.jp/products/444858091-tthu805-washlet-connection-adapter-kit-in-wall-tank-system-n](https://www.desertcart.jp/products/444858091-tthu805-washlet-connection-adapter-kit-in-wall-tank-system-n)

---

*Product available on Desertcart Japan*
*Store origin: JP*
*Last updated: 2026-08-15*