---
product_id: 55321397
title: "Drainage Flap Valve, Non Return Valve, With Universal Connection 72mm -100mm"
brand: "plumbing4home"
price: "£105.32"
currency: GBP
in_stock: true
reviews_count: 1
category: "Plumbing4 Home"
url: https://www.desertcart.co.uk/products/55321397-drainage-flap-valve-non-return-valve-with-universal-connection-72mm
store_origin: GB
region: United Kingdom
---

# Universal 72-100mm fit UV & heat resistant materials Rodent & backflow protection Drainage Flap Valve, Non Return Valve, With Universal Connection 72mm -100mm

**Brand:** plumbing4home
**Price:** £105.32
**Availability:** ✅ In Stock

## Summary

> 🛠️ Upgrade your drainage game—secure, smart, and built to protect!

## Quick Answers

- **What is this?** Drainage Flap Valve, Non Return Valve, With Universal Connection 72mm -100mm by plumbing4home
- **How much does it cost?** £105.32 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/55321397-drainage-flap-valve-non-return-valve-with-universal-connection-72mm)

## Best For

- plumbing4home enthusiasts

## Why This Product

- Trusted plumbing4home brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Built to Last:** Crafted from premium polypropylene and stainless steel, engineered to resist UV rays, heat, and harsh chemicals.
- • **Plug & Protect:** Flanged connection ensures a secure, leak-proof seal—install once, worry never.
- • **Rodent Blockade:** Prevents unwanted rodent intrusions through sewage lines, keeping your space hygienic and secure.
- • **Flood Defense Mode:** Automatically blocks stormwater backflow to safeguard your lower floors from costly water damage.
- • **Seamless Universal Fit:** Fits 72-100mm pipes for effortless installation across diverse plumbing setups.

## Overview

The Karmat Drainage Flap Valve is a high-quality, self-activating non-return valve designed for universal 72-100mm sanitary sewage pipes. It prevents flooding from stormwater backflow and blocks rodents from entering buildings through drainage systems. Made from durable polypropylene and stainless steel, it offers UV, heat, and chemical resistance, ensuring long-lasting protection for lower floors and plumbing infrastructure.

## Description

Flap valves of Karmat are innovative devices protecting rooms on the lower levels against flooding caused by backward flow of storm water and sewage. These devices are fully self-activating. Flap valves effectively protect plumbing systems from rats entering the buildings. Flap valves are installed at the end of sanitary sewage pipes entering collection wells, cesspits or drainage pipes leading storm water to ditches or rivers. Advantages: - high quality polypropylene and stainless steel ending; - sun light/high temperature resistance; - immunity to aggressive chemical compounds

Review: buono - ok, ottima per tubi corrugati, ma io dovevo montarla su tubo liscio del diametro 100... il diametro in realtà è un 110 e non un 100.... Ho dovuto procurarmi una riduzione dal costo di pochi euro, ma senza di quella non avrei potuto montare la valvola. spero di non averne bisogno, ma nel caso spero funzioni!

## Features

- Installed at the end of universal 72-100mm sanitary sewage pipes leading storm water to rivers;
- Prevents against rodents entering building interiors through the sewage and other sanitary systems;
- Secure the lower floors against flooding caused by back flow of storm water and sewage;
- High quality PVC Plastic and stainless steel ending, sun light/high temperature resistance

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B00IRE2U5E |
| Best Sellers Rank | 172,789 in Garden ( See Top 100 in Garden ) 30 in Garden Drainage Pipes |
| Brand | PLUMBING4HOME |
| Connector Type | Flanged |
| Customer Reviews | 4.7 out of 5 stars 2 Reviews |
| Exterior Finish | Stainless Steel |
| Exterior finish | Stainless Steel |
| Inlet Connection Size | 72 Millimeters |
| Inlet Connection Type | Flange |
| Inlet connection size | 72 Millimeters |
| Inlet connection type | Flange |
| Item Weight | 0.35 Kilograms |
| Manufacturer | Karmat |
| Material | Polypropylene (PP) , Stainless Steel |
| Model Number | B00IRE2U5E |
| Number of Ports | 1 |
| Outlet Connection Size | 86 Millimeters |
| Outlet Connection Type | Flange |
| Outlet connection type | Flange |
| Part Number | 452d |
| Set Name | Karmat Drainage Flap Valve Set |
| Size | 72-100 mm |
| Smart Home Compatibility | Not Smart Home Compatible |
| Specification Met | ASTM, ISO |
| Thread Size | 72-100 mm |
| Thread Type | Flanged |
| Unit Count | 1.0 count |
| Valve Type | Flap Valve |

## Product Details

- **Brand:** PLUMBING4HOME
- **Exterior finish:** Stainless Steel
- **Inlet connection size:** 72 Millimeters
- **Inlet connection type:** Flange
- **Material:** Polypropylene (PP), Stainless Steel
- **Number of ports:** 1
- **Outlet connection size:** 86 Millimeters
- **Outlet connection type:** Flange
- **Smart Home Compatibility:** Not Smart Home Compatible
- **Specification met:** ASTM, ISO

## Images

![Drainage Flap Valve, Non Return Valve, With Universal Connection 72mm -100mm - Image 1](https://m.media-amazon.com/images/I/41Ic7lNicCL.jpg)
![Drainage Flap Valve, Non Return Valve, With Universal Connection 72mm -100mm - Image 2](https://m.media-amazon.com/images/I/81cul9GEuXL.jpg)
![Drainage Flap Valve, Non Return Valve, With Universal Connection 72mm -100mm - Image 3](https://m.media-amazon.com/images/I/81MW3kMIsAL.jpg)

## Customer Reviews

### ⭐⭐⭐⭐ buono
*by F***A on 17 February 2017*

ok, ottima per tubi corrugati, ma io dovevo montarla su tubo liscio del diametro 100... il diametro in realtà è un 110 e non un 100.... Ho dovuto procurarmi una riduzione dal costo di pochi euro, ma senza di quella non avrei potuto montare la valvola. spero di non averne bisogno, ma nel caso spero funzioni!

## Frequently Bought Together

- Drainage Flap Valve, Non Return Valve, With Universal Connection 72mm -100mm
- Roshield Rat Drain Guard | Stop Rats within Drainage & Properties | Rodent Flap Control & Prevention Proofing (Stainless Steel 4"/110mm)
- Retro Fit 110mm 4 inch Drain Non Return Valve with Stainless Steel Flap

---

## Why Shop on Desertcart?

- 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016
- 🌍 **Shop Globally** — Access 737+ million products across 21 categories
- 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price
- 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members)
- 🔒 **Secure Payments** — Trusted payment options with buyer protection
- ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews

**Shop now:** [https://www.desertcart.co.uk/products/55321397-drainage-flap-valve-non-return-valve-with-universal-connection-72mm](https://www.desertcart.co.uk/products/55321397-drainage-flap-valve-non-return-valve-with-universal-connection-72mm)

---

*Product available on Desertcart United Kingdom*
*Store origin: GB*
*Last updated: 2026-05-26*