---
product_id: 50109798
title: "50mm Flush Pipe Seal Washer & Clip for Concealed Cistern 240.139.00.1 - PPF, Polytetrafluoroethylene, White"
brand: "geberit"
price: "KD 5.40"
currency: KWD
in_stock: true
reviews_count: 13
category: "Geberit"
url: https://www.desertcart.com.kw/products/50109798-50mm-flush-pipe-seal-washer-and-clip-for-concealed-cistern
store_origin: KW
region: Kuwait
---

# PTFE material for ultimate seal 5-minute DIY install 50mm precision fit 50mm Flush Pipe Seal Washer & Clip for Concealed Cistern 240.139.00.1 - PPF, Polytetrafluoroethylene, White

**Brand:** geberit
**Price:** KD 5.40
**Availability:** ✅ In Stock

## Summary

> 🚿 Seal the deal with Geberit – leak-free luxury in minutes!

## Quick Answers

- **What is this?** 50mm Flush Pipe Seal Washer & Clip for Concealed Cistern 240.139.00.1 - PPF, Polytetrafluoroethylene, White by geberit
- **How much does it cost?** KD 5.40 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.com.kw](https://www.desertcart.com.kw/products/50109798-50mm-flush-pipe-seal-washer-and-clip-for-concealed-cistern)

## 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

- • **DIY Friendly:** No plumber needed—get a flawless fix in under 5 minutes, even if you’re a novice.
- • **Snap & Secure:** Includes a fastening clip for effortless, rock-solid installation every time.
- • **Leak-Proof Confidence:** Engineered PTFE seal ensures zero drips, keeping your bathroom flawless.
- • **Durability Meets Design:** Lightweight yet robust, this seal washer resists wear and keeps your flush flawless.
- • **Universal Compatibility:** Perfectly tailored for Geberit 109 720 00 1 & 123 137 cistern models.

## Overview

The Geberit 50mm Flush Pipe Seal Washer & Clip (model 240.139.00.1) is a high-quality, PTFE-made sealing solution designed for concealed and exposed cisterns, specifically models 109 720 00 1 and 123 137 11 1. Lightweight at just 10g, it includes a fastening clip for quick, secure installation, delivering a reliable, leak-proof flush pipe connection favored by DIYers and professionals alike.

## Description

Flush pipe seal around the 109 720 00 1 low height cistern Also for the 123 137 11 1 exposed cistern.

Review: Flush seal - Perfect for the job no more leaking cistern 5 minutes job done and that’s a novice diyer lol
Review: Perfect fit; don't waste your time - Spent hours trying to fix a leak, but this cheap replacement did the trick in no time. Just wish I brought it earlier :)

## Features

- Flush Pipe Seal for the 109 720 00 1 low height cistern
- includes fastening clip
- Geberit 240 139 00 1 black white seal for 123 137 cistern shower

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B00K765S4K |
| Batteries Required? | No |
| Batteries included? | No |
| Best Sellers Rank | 91,278 in DIY & Tools ( See Top 100 in DIY & Tools ) 186 in Toilet Tanks |
| Certification | CE |
| Customer Reviews | 4.6 4.6 out of 5 stars (328) |
| Date First Available | 9 Nov. 2013 |
| Item Package Quantity | 1 |
| Item Weight | 10 g |
| Item model number | 240.139.00.1 |
| Manufacturer | Geberit |
| Material | Polytetrafluoroethylene |
| Part Number | 240.139.00.1 |
| Product Dimensions | 7 x 7 x 1.7 cm; 10 g |

## Product Details

- **Brand:** Geberit
- **Exterior finish:** Plastic
- **Inlet connection size:** 32 Millimeters
- **Inlet connection type:** AP cistern
- **Item dimensions L x W x H:** 7 x 7 x 1.7 centimetres
- **Material:** Polytetrafluoroethylene
- **Number of ports:** 2
- **Outlet connection size:** 5E+1 Millimeters
- **Outlet connection type:** Compression
- **Specification met:** CE

## Images

![50mm Flush Pipe Seal Washer & Clip for Concealed Cistern 240.139.00.1 - PPF, Polytetrafluoroethylene, White - Image 1](https://m.media-amazon.com/images/I/41jhPWIbPSL.jpg)

## Questions & Answers

**Q: how do i get the old seal out. I have taken out the flushing system but cannot work out how to get the flush system housing out?**
A: If you mean the water flush tank, then isolate the water supply and disconnect the connection. Then unscrew the 2 screws into the wall. Lift the flush tank vertically to remove. Turn upside down and the old seal will be easy to access.hope this helps

**Q: Can the flush pipe seal and retaining clip be replaced in situ and if so what is the best method of removing the old seal. Or do you have to remove th**
A: Yes, obviously the flush pipe needs to be removed first though. It’s easy enough to lever the old retaining clip out with a flat head screwdriver or something similar. Then the old seal will drop out. Put plenty of silicone spray or grease on the new seal before pushing in the flush pipe.

**Q: Which way does the black wash go**
A: It is best to ask the manufacturer.

**Q: Can someone clarfiy how this is fitted? Fitted as expected still leaking**
A: Is the Geberit flush pipe fastening (part no. 241.378.00.1) fitted? If not, this is the problem. Once it is, make sure everything is tight and that the pipe and washer are seated properly.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Flush seal
*by A***R on 7 February 2024*

Perfect for the job no more leaking cistern 5 minutes job done and that’s a novice diyer lol

### ⭐⭐⭐⭐⭐ Perfect fit; don't waste your time
*by K***M on 26 August 2024*

Spent hours trying to fix a leak, but this cheap replacement did the trick in no time. Just wish I brought it earlier :)

### ⭐⭐⭐⭐ Genuine part which stops the leak, but a pig to install.
*by J***K on 18 September 2020*

Perfect fit for the Geberit 109.720.00.1 as the description says. This fixed a leak between the cistern underside and flush pipe leading to the bowl. the old rubber seal had perished and gone hard. We got a plumber to come and try to fix it and he used a non-branded part. Looked almost identical, but it still leaked. He applied 2 entire rolls of plumbers tape on top. It still leaked. He gave up, left and didn't charge us! We did some research, bought this, fitted it ourselves and job done. Problem solved and no tape required. The end of the clip did shatter on us though which was annoying. Otherwise all fine, just a pig to install. Method below: 1)Do not use lubricant, it just creates a path for capillary action. You want the rubber to grip the pipe. 2) Prize out the existing clip using a flathead screwdriver. Work gently round if you don't want to split the plastic. Doesn't matter if it breaks - this comes with the replacement. 3) pull down on the pipe (make sure you have undone any restraint brackets etc first) 4) remove old rubber ring. 5) slide the new plastic clip down the pipe 6) push down the new rubber seal over the pipe (right down the pipe, don't leave it on top) - it sits well above the lip of the cistern moulding so don't push it too far down the pipe) 7) get small the end of a toothbrush or something similar rounded, not sharp and with the pipe held up to the top in the cistern socket work around to push the rubber into position 8) insert the plastic clip. Go gently It has to clip into the recess inside the socket. This took some effort, but is impossible if you haven't done 7 first. The last bit I resorted to a flathead screwdriver and the end shattered off which was annoying. It's a shame they don't use a less brittle plastic for this clip. That's it. No more leaks, and no plumbers fee. Just a lot of effort getting the thing to install. It is not simple like replacing a screw-on pipe with standard O-ring washer.

## Frequently Bought Together

- Geberit 50mm Flush Pipe Seal Washer & Clip for Concealed Cistern 240.139.00.1 - PPF, Polytetrafluoroethylene, White
- Geberit Internal Low Level Flush Pipe Rubber Cone Seal for 40mm Concealed Bend 119.668.00.1
- Geberit Concealed Cistern 2" Flush Pipe & Rubber Cone 50mm x 44mm 119.705.93.1

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*Product available on Desertcart Kuwait*
*Store origin: KW*
*Last updated: 2026-02-08*