---
product_id: 21301623
title: "816.418.00.1 Flush Valve Base Sealing Washer - Clear"
brand: "geberit"
price: "¥2786"
currency: JPY
in_stock: true
reviews_count: 13
category: "Geberit"
url: https://www.desertcart.jp/products/21301623-816-418-00-1-flush-valve-base-sealing-washer-clear
store_origin: JP
region: Japan
---

# 100% leak-proof seal durable rubber material 62mm precision fit 816.418.00.1 Flush Valve Base Sealing Washer - Clear

**Brand:** geberit
**Price:** ¥2786
**Availability:** ✅ In Stock

## Summary

> 💧 Seal the deal with Geberit’s leak-proof flush valve washer!

## Quick Answers

- **What is this?** 816.418.00.1 Flush Valve Base Sealing Washer - Clear by geberit
- **How much does it cost?** ¥2786 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/21301623-816-418-00-1-flush-valve-base-sealing-washer-clear)

## Best For

- geberit enthusiasts

## Why This Product

- Trusted geberit brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Always Ready on Standby:** Compact, lightweight design means you can stock extras for instant fixes—never get caught off guard again.
- • **Long-Lasting Durability:** Resilient rubber construction resists warping and wear, maintaining peak performance over time.
- • **Precision Engineered Fit:** Exact 62mm diameter ensures flawless compatibility with all Geberit flush valves.
- • **Ultimate Leak Protection:** High-quality rubber washer guarantees a watertight seal, eliminating annoying leaks and water waste.
- • **Effortless DIY Replacement:** Quick and simple swap saves time and avoids costly plumber visits—perfect for the proactive homeowner.

## Overview

The Geberit 816.418.00.1 Flush Valve Base Sealing Washer is a durable, clear rubber gasket precisely sized at 62mm to fit all Geberit flush valves. Designed to prevent leaks caused by wear and warping, it offers an easy, cost-effective replacement solution that ensures your toilet flush valve maintains a perfect seal, saving water and avoiding costly repairs.

## Description

Geberit flush valve won't seal properly and is constantly passing water into the toilet pan but there is no sign of an inlet valve failure, it could very well be that the base sealing washer need to be changed. Overtime as the flush valve is opened and closed, small imperfections tend to occur in the surface of the rubber washer causing the washer to be warped and not providing an adequate seal.

Review: Easy replacement!! - I always buy extras so I can have them ready if my toilet water tank starts to run. They can sit on a shelf forever and are easy to replace!!
Review: Fixed leaky toilet! - Perfect fit, great price. This was the only part needed to fix the toilet. The one that was bad had air bubbles in it causing the toilet to periodically leak, then stop. Took about 10 minutes, and job done!

## Features

- Suitability: Suitable for all Geberit flush valves
- Contents Base sealing washer only.
- Good quality product
- Model number: 816.418.00.1

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B004V7FOK4 |
| Best Sellers Rank | #154,376 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #208 in Toilet Flush Valves |
| Brand | Geberit |
| Color | Clear |
| Date First Available | October 8, 2012 |
| Exterior Finish | Rubber or Plastic |
| Global Trade Identification Number | 04025416069669, 08033146067868 |
| Is Discontinued By Manufacturer | No |
| Item Diameter | 62 Millimeters |
| Item Weight | 0.704 ounces |
| Item model number | K11749 |
| Manufacturer | Geberit |
| Material | Rubber |
| Metal Type | Edelstahl |
| Number of Pieces | 1 |
| Outside Diameter | 62 Millimeters |
| Size | 6.3 x 6.3 x 0.3cm |
| UPC | 791429795607 733353441540 |
| Washer Type | Sealing |

## Product Details

- **Exterior Finish:** Rubber or Plastic
- **Material:** Rubber
- **Outside Diameter:** 62 Millimeters
- **Size:** 6.3 x 6.3 x 0.3cm
- **Washer Type:** Sealing

## Images

![816.418.00.1 Flush Valve Base Sealing Washer - Clear - Image 1](https://m.media-amazon.com/images/I/41xuf7cFOdL.jpg)

## Questions & Answers

**Q: What is the Outside and Inside Diameters?**
A: It is about 2 1/2" OD and ID is about 1 1/4".

**Q: is this an exact replacement for kohler seal kit #1203764?**
A: Yes

## Customer Reviews

### ⭐⭐⭐⭐⭐ Easy replacement!!
*by V***O on May 9, 2025*

I always buy extras so I can have them ready if my toilet water tank starts to run. They can sit on a shelf forever and are easy to replace!!

### ⭐⭐⭐⭐⭐ Fixed leaky toilet!
*by A***R on August 20, 2025*

Perfect fit, great price. This was the only part needed to fix the toilet. The one that was bad had air bubbles in it causing the toilet to periodically leak, then stop. Took about 10 minutes, and job done!

### ⭐⭐⭐⭐⭐ Fix your slow leaking tank
*by T***. on September 10, 2025*

Great fit. Gasket fixed the slow water leaking problem in the tank.

## Frequently Bought Together

- Geberit 816.418.00.1 Flush Valve Base Sealing Washer - Clear
- Geberit 241.469.00.1 Toilets and Bidets
- Geberit Connecting Hose for Concealed cisterns, 120 mm, 1 Piece, 240.921.00.1, Silver

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**Shop now:** [https://www.desertcart.jp/products/21301623-816-418-00-1-flush-valve-base-sealing-washer-clear](https://www.desertcart.jp/products/21301623-816-418-00-1-flush-valve-base-sealing-washer-clear)

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*Product available on Desertcart Japan*
*Store origin: JP*
*Last updated: 2026-02-09*