---
product_id: 395604498
title: "Membrane 43733000"
brand: "grohe"
price: "£11.32"
currency: GBP
in_stock: true
reviews_count: 5
category: "Grohe"
url: https://www.desertcart.co.uk/products/395604498-membrane-43733000
store_origin: GB
region: United Kingdom
---

# High Pressure >1.0 Bar Threaded Connector Type 5 Years Warranty Membrane 43733000

**Brand:** grohe
**Price:** £11.32
**Availability:** ✅ In Stock

## Summary

> 💧 Upgrade your flow, seal the deal with GROHE precision!

## Quick Answers

- **What is this?** Membrane 43733000 by grohe
- **How much does it cost?** £11.32 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.co.uk](https://www.desertcart.co.uk/products/395604498-membrane-43733000)

## Best For

- grohe enthusiasts

## Why This Product

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

## Key Features

- • **Confidence-Backed Warranty:** 5-year manufacturer’s warranty guarantees long-term peace of mind and product reliability.
- • **Effortless DIY Replacement:** Straight swap design means no plumbing pro needed—get your system back to peak performance fast.
- • **Durable Rubber-Plastic Build:** Premium materials resist wear and tear, extending valve life and reducing maintenance frequency.
- • **Seamless GROHE Compatibility:** Designed exclusively for GROHE inlet valves ensuring a perfect, hassle-free fit every time.
- • **Precision High-Pressure Performance:** Engineered to handle over 1.0 Bar for reliable, leak-free sealing under demanding conditions.

## Overview

The GROHE Membrane 43733000 is a high-pressure diaphragm washer designed exclusively for GROHE inlet valves. Crafted from durable rubber and plastic, it ensures a perfect seal to prevent leaks caused by wear or debris. Featuring a threaded connector for easy installation and backed by a 5-year warranty, this membrane offers a reliable, long-lasting solution to maintain optimal valve performance.

## Description

Grohe inlet valve won't shut off properly it could very well be that the diaphragm washer inside of the valve needs to be replaced. Over time as the valve is continuously opening and closing, small tears can start to form in the diaphragm washer, in turn the diaphragm washer will no longer give a good seal and debris in the water supply can also contribute overtime to this washer being worn.

Review: Polecam - Działa jak powinno polecam
Review: Straight easy swap for old valve - Straight swap for broken valve, super easy and perfect fit. Worked first time with no issues.

## Features

- High Pressure | Over 1.0 Bar
- Suitable only for GROHE inlet valves
- Red/Clear
- Rubber and plastic
- 5 Years Manufacturer's Warranty

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B0031ZT0CU |
| Best Sellers Rank | #96,094 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #12 in Faucet & Valve Washers |
| Brand | GROHE |
| Brand Name | GROHE |
| Connector Type | Threaded |
| Customer Reviews | 4.4 out of 5 stars 747 Reviews |
| Exterior Finish | StarLight Chrome |
| Exterior finish | StarLight Chrome |
| Global Trade Identification Number | 04005176158926 |
| Included Components | 1 x Grohe Adagio Inlet Float Valve Diaphragm Washer 4375800M |
| Inlet Connection Size | 4 Centimeters |
| Inlet Connection Type | Solvent |
| Inlet connection size | 4 Centimeters |
| Inlet connection type | Solvent |
| Item Dimensions | 40 x 35 x 20 millimeters |
| Item Type Name | Adagio Inlet Float Valve Diaphragm Washer 4375800M |
| Item dimensions L x W x H | 40 x 35 x 20 millimeters |
| Manufacturer | Grohe UK Ltd (EUR account) |
| Manufacturer Part Number | 43733000 |
| Material | Rubber Plastic |
| Material Type | Rubber Plastic |
| Model Number | 43733000 |
| Number of Items | 1 |
| Number of Packs | 1 |
| Number of Pieces | 1 |
| Number of Ports | 2 |
| Outlet Connection Size | 3.5 Centimeters |
| Outlet Connection Type | NPT |
| Size | 28 cubic centimeters |
| Specification Met | CSA, ULC |
| Thread Size | 3.5 centimeters |
| Thread Type | NPT |
| Unit Count | 1 Count |
| Valve Type | Globe Valve |

## Product Details

- **Brand:** GROHE
- **Exterior finish:** StarLight Chrome
- **Inlet connection size:** 4 Centimeters
- **Item dimensions L x W x H:** 40 x 35 x 20 millimeters
- **Material:** Rubber Plastic

## Images

![Membrane 43733000 - Image 1](https://m.media-amazon.com/images/I/511DBKriEzL.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ Polecam
*by K***A on 17 September 2025*

Działa jak powinno polecam

### ⭐⭐⭐⭐⭐ Straight easy swap for old valve
*by J***P on 13 April 2026*

Straight swap for broken valve, super easy and perfect fit. Worked first time with no issues.

### ⭐⭐⭐⭐⭐ Tres bien
*by C***L on 6 September 2024*

correspond à nos attentes. Délais respectés

## Frequently Bought Together

- GROHE 4373300 | Membrane Inlet Valve
- Grohe 47050000 1/2-Inch Thermo-Element
- Grohe 47111000 1/2″ Thermo-element Cartridge, Unfinished

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*Product available on Desertcart United Kingdom*
*Store origin: GB*
*Last updated: 2026-08-31*