---
product_id: 544304662
title: "WeCooper Plug-in Backflow Flap DN 100 mm Extractor Ventilation Hood Galvanised Steel with Sealing Rubber Aluminium Flaps Ball Valve"
brand: "wecooper"
price: "฿3507"
currency: THB
in_stock: true
reviews_count: 6
category: "We Cooper"
url: https://www.desertcart.co.th/products/544304662-wecooper-plug-in-backflow-flap-dn-100-mm-extractor-ventilation
store_origin: TH
region: Thailand
---

# Rubber seal for noise reduction DN 100 mm plug-in size Galvanised steel & aluminium build WeCooper Plug-in Backflow Flap DN 100 mm Extractor Ventilation Hood Galvanised Steel with Sealing Rubber Aluminium Flaps Ball Valve

**Brand:** wecooper
**Price:** ฿3507
**Availability:** ✅ In Stock

## Summary

> 🌬️ Elevate your airflow game — keep the fresh air flowing, the cold out, and the noise down!

## Quick Answers

- **What is this?** WeCooper Plug-in Backflow Flap DN 100 mm Extractor Ventilation Hood Galvanised Steel with Sealing Rubber Aluminium Flaps Ball Valve by wecooper
- **How much does it cost?** ฿3507 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.co.th](https://www.desertcart.co.th/products/544304662-wecooper-plug-in-backflow-flap-dn-100-mm-extractor-ventilation)

## Best For

- wecooper enthusiasts

## Why This Product

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

## Key Features

- • **Whisper-Quiet Operation:** Inner rubber seal and foam strip reduce noise and enhance airtightness for a peaceful environment.
- • **Trusted Quality & Support:** Backed by a 24-month warranty and responsive customer service with replies within 2 hours.
- • **Premium Durability Materials:** Constructed with galvanised steel casing, aluminium blades, and stainless steel shaft for long-lasting performance.
- • **Effortless Plug-In Installation:** Designed for quick insertion into DN 100 exhaust hoses with secure sealing and compatibility with metal or plastic ducts.
- • **Seamless One-Way Airflow Control:** Automatically opens/closes to prevent cold drafts and backflow, ensuring optimal ventilation efficiency.

## Overview

The WeCooper Plug-in Backflow Flap DN 100 mm is a robust extractor ventilation hood designed for seamless one-way airflow in exhaust systems. Made from galvanised steel and aluminium with stainless steel components, it prevents cold air ingress and backflow while minimizing noise through advanced rubber sealing. Ideal for tumble dryers, kitchens, bathrooms, and ventilation ducts, it offers easy plug-in installation and is backed by a 24-month warranty and fast customer support.

## Description

Plug-in check valve DN 100 extractor. Especially suitable for plugging into exhaust hose. Perfect for use in tumble dryers, bathrooms, garages, air conditioners, fans, cooker hoods, ventilation systems. The folding valve opens and closes automatically and allows only one air flow in one direction, preventing cold air from entering. When the blind is mounted, the flap leaves open only in the direction of the outflowing air. The shaft axle must be vertical when installing the backflow flap and best installed in a horizontal position and inserted completely into the pipe. This also applies to vertical installation. The housing of the flap is made of galvanised sheet steel. The valve blades are made of aluminium. Shaft and spring are made of stainless steel. The inner rubber seal is used for better tightness and noise reduction. The outer foam sealing strip ensures a good seal and fixation of the backflow flap in the channel. The flap valve can be inserted directly into a non-flexible metal or plastic channel, but for a flexible duct, you need to use steel pipe clamps to secure the check valve. You can't go wrong with purchasing this slide-in backflow flap. Please contact us directly if you have any questions. We will reply within 2 hours.

Review: Good product, a bit over priced - Works just fine
Review: Very well made, all dimensions correct, perform perfectly ( although I'm using it with AEG kitchen hood which in full trhotle pumps 700 cubic meters of air per hour, on lowest settings probably about 150 ) with it works perfectly.Spring holding back draft flap is quite strong, than if someone going to use it with not as such powerful units (like washing air dryers etc) might not be suitable, but it's just my guess, can't tell for sure, you need to baisycly try it.

## Features

- Plug-in check valve DN 100 extractor. Especially suitable for plugging into exhaust hose. Perfect for use in tumble dryers, bathrooms, garages, air conditioners, fans, cooker hoods, ventilation systems
- The folding valve opens and closes automatically and allows only one air flow in one direction, preventing cold air from entering. When the blind is mounted, the flap leaves open only in the direction of the outflowing air. The shaft axle must be vertical when installing the backflow flap and best installed in a horizontal position and inserted completely into the pipe. This also applies to vertical installation
- The casing of the flap is made of galvanised sheet steel. The valve blades are made of aluminium. Shaft and spring are made of stainless steel
- The inner rubber seal is used for better tightness and noise reduction. The outer foam sealing strip ensures a good seal and fixation of the backflow flap in the channel. The flap valve can be inserted directly into a non-flexible metal or plastic duct, but for a flexible duct, you will need to use steel pipe clamps to secure the check valve
- We have a 24-month warranty. You can't go wrong with purchasing this slide-in backflow flap. Please contact us directly if you have any questions. We will reply within 2 hours

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B09H5DBB7W |
| ASIN  | B09H5DBB7W |
| Batteries Included? | No |
| Batteries Required? | No |
| Best Sellers Rank | #42,019 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #44 in Heating & Cooling Ducting Products |
| Color | silver |
| Customer Reviews | 4.4 4.4 out of 5 stars (1,098) |
| Customer reviews | 4.4 4.4 out of 5 stars (1,098) |
| Date First Available | 26 December 2021 |
| Date First Available  | 26 December 2021 |
| Item Weight | 150 g |
| Item model number | 208672c9-b911-4d76-a6cc-85e645db2f22 |
| Item model number  | 208672c9-b911-4d76-a6cc-85e645db2f22 |
| Manufacturer | WeCooper |
| Manufacturer  | WeCooper |
| Material | short |
| Package Dimensions | 28.5 x 21.8 x 6.2 cm; 150 g |
| Package Dimensions  | 28.5 x 21.8 x 6.2 cm; 150 g |
| Size | 100mm standard |
| Specification met | EN 10204, EN 10206 |

## Product Details

- **Brand:** WeCooper
- **Exterior finish:** Stainless Steel
- **Inlet connection size:** 4 Inches
- **Inlet connection type:** Female Iron Pipe
- **Material:** short

## Images

![WeCooper Plug-in Backflow Flap DN 100 mm Extractor Ventilation Hood Galvanised Steel with Sealing Rubber Aluminium Flaps Ball Valve - Image 1](https://m.media-amazon.com/images/I/51SrnFkhhoL.jpg)

## Available Options

This product comes in different **Size** options.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Good product, a bit over priced
*by S***D on 29 August 2025*

Works just fine

### ⭐⭐⭐⭐⭐ Review
*by G***G on 16 October 2025*

Very well made, all dimensions correct, perform perfectly ( although I'm using it with AEG kitchen hood which in full trhotle pumps 700 cubic meters of air per hour, on lowest settings probably about 150 ) with it works perfectly.Spring holding back draft flap is quite strong, than if someone going to use it with not as such powerful units (like washing air dryers etc) might not be suitable, but it's just my guess, can't tell for sure, you need to baisycly try it.

### ⭐⭐⭐⭐⭐ Review
*by C***R on 29 October 2023*

Werd snel verzonden en netjes op tijd geleverd

## Frequently Bought Together

- WeCooper 100mm - 4 inch Connector with Backdraught Shutter, Non-Return Damper Flap to Connect Duct Pipe or Flexible Hose Pipe
- TUPARKA 4 Pack Large Size Metal Hose Clips 91-114 mm Adjustable Ducting Clamps for Securing Hoses and Pipes Tube
- Manrose, MF100T, black

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*Product available on Desertcart Thailand*
*Store origin: TH*
*Last updated: 2026-02-20*