---
product_id: 288043899
title: "Seal Backdraft Shutter 4 Inch Inline Extractor Fan Backdraft Shutter Quiet Rubber Flaps, Fits All DN 100mm Ducting/Made from Recycled Plastic in DE"
brand: "calimaero"
price: "AR$90720"
currency: ARS
in_stock: true
url: https://www.desertcart.com.ar/products/288043899-seal-backdraft-shutter-4-inch-inline-extractor-fan-backdraft-shutter
store_origin: AR
region: Argentina
---

# Ultra-quiet rubber flaps Universal 100mm duct fit Eco-friendly recycled plastic Seal Backdraft Shutter 4 Inch Inline Extractor Fan Backdraft Shutter Quiet Rubber Flaps, Fits All DN 100mm Ducting/Made from Recycled Plastic in DE

**Brand:** calimaero
**Price:** AR$90720
**Availability:** ✅ In Stock

## Summary

> ♻️ Silence meets sustainability: The smart backdraft shutter your home deserves!

## Quick Answers

- **What is this?** Seal Backdraft Shutter 4 Inch Inline Extractor Fan Backdraft Shutter Quiet Rubber Flaps, Fits All DN 100mm Ducting/Made from Recycled Plastic in DE by calimaero
- **How much does it cost?** AR$90720 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.com.ar](https://www.desertcart.com.ar/products/288043899-seal-backdraft-shutter-4-inch-inline-extractor-fan-backdraft-shutter)

## Best For

- calimaero enthusiasts

## Why This Product

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

## Key Features

- • **Sustainable by Design:** Crafted from premium recycled German plastic ♻️, reducing your carbon footprint while upgrading your home.
- • **Whisper-Quiet Operation:** Rubber flaps engineered to eliminate rattling 🔇, ensuring peaceful ventilation without annoying noise.
- • **Effortless Universal Fit:** Seamlessly fits all DN 100mm ducting 🔧, perfect for retrofitting any extractor or ventilation system.
- • **Trusted Expertise & Support:** Backed by 40+ years of ventilation mastery with responsive customer service ready to assist.
- • **All-in-One Ventilation Solution:** Ideal for bathroom fans, cooker hoods, tumble dryers, and HVAC systems—no need to shop around.

## Overview

The Seal Backdraft Shutter is a 4-inch inline extractor fan accessory made from recycled German plastic, designed to fit all 100mm ducting. Featuring quiet rubber flaps and a secure seal, it prevents cold air backflow while operating silently. Ideal for retrofitting ventilation systems like bathroom fans and cooker hoods, it combines eco-conscious materials with durable, weather-resistant construction and over 40 years of ventilation expertise.

## Description

Seal Backdraft Shutter 4 Inch Inline Extractor Fan Backdraft Shutter Quiet Rubber Flaps, Fits All DN 100mm Ducting/Made from Recycled Plastic in DE

## Features

- HIGH-QUALITY MATERIALS The calimaero backdraft shutter does not only prevent the outside cold air from entering back into your home but it also helps our environment because it is made of recycled material from Germany. This back draught can be inserted into all exhaust air pipes regardless of the ducting materials. Its plastic and rubber flaps are robust, weather resistant, and environmentally friendly.
- PRODUCT FUNCTION The 100mm backdraught shutter is pushed completely into the ducting pipe. Ideal for retrofitting bathroom fans and other ventilation systems without a built-in backdraft shutter. The rubber flaps must be aligned so that they open with the exhaust airflow. The outer rubber ring ensures a perfect seal and a secure hold.
- PRODUCT FEATURES Perfect choice for your home improvement. The smooth-running flaps can also be opened by small fans. Its rubber flaps open and close more silently than other metal or plastic models. This will ensure you will not be disturbed by constant annoying rattling from cheaper models.
- MULTIPLE USE Perfectly designed for exhaust air systems such as air conditioning systems, tumble dryers, extractor fans, cooker hood, and other HVAC applications. No need to buy multiple products to find the one that works.
- CUSTOMER SERVICE We are experts in ventilation for more than 40 years. If you have any questions or complaints, please contact our customer service directly. Your request will be processed immediately.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B08W4DM7Y5 |
| Batteries Required? | No |
| Batteries included? | No |
| Best Sellers Rank | 14,305 in DIY & Tools ( See Top 100 in DIY & Tools ) 31 in Bathroom Fans |
| Certification | CE, RoHS |
| Colour | Black |
| Customer Reviews | 3.6 3.6 out of 5 stars (632) |
| Date First Available | 11 Feb. 2021 |
| Item Package Quantity | 1 |
| Item Weight | 30 g |
| Item model number | Backdraft Exhaust Damper Seal 100 |
| Manufacturer | calimaero |
| Material | Rubber |
| Number of Pieces | 1 |
| Part Number | 4054503048133 |
| Product Dimensions | 12 x 11.2 x 2.5 cm; 30.05 g |
| Size | 4 inches |

## Product Details

- **Brand:** calimaero
- **Exterior finish:** Painted
- **Inlet connection size:** 4 Inches
- **Inlet connection type:** Flange
- **Item dimensions L x W x H:** 12 x 11.2 x 2.5 centimetres
- **Material:** Rubber
- **Number of ports:** 2
- **Outlet connection size:** 4 Inches
- **Outlet connection type:** Flange
- **Specification met:** CE, RoHS

## Images

![Seal Backdraft Shutter 4 Inch Inline Extractor Fan Backdraft Shutter Quiet Rubber Flaps, Fits All DN 100mm Ducting/Made from Recycled Plastic in DE - Image 1](https://m.media-amazon.com/images/I/61E6gaV5tvL.jpg)

## Questions & Answers

**Q: Will this damper work for a vertical pipe from a bathroom ceiling extractor fan?**
A: I would think so it’s a butyl rubber flap that just moves by airflow and then falls back to a stop when the airflow stops.

**Q: The dimensions are confusing. Does it fit inside a flexi ducting of 100mm?**
A: Good morning, you can insert the damper into a 100mm flexible ventilation pipe.

**Q: Does this fit directly inside a 100mm pipe?**
A: Fits snugly in the flexible 100mm pipe. I used them to replace the hinged plastic backdraft traps which were noisy. So far very pleased.

**Q: hello can this fit within the pipe of a kitchen extractor fan ?**
A: Yes it fits into the 100mm duct behind the fan. It can be fitted from inside or outside. You just push it into place.

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**Shop now:** [https://www.desertcart.com.ar/products/288043899-seal-backdraft-shutter-4-inch-inline-extractor-fan-backdraft-shutter](https://www.desertcart.com.ar/products/288043899-seal-backdraft-shutter-4-inch-inline-extractor-fan-backdraft-shutter)

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*Product available on Desertcart Argentina*
*Store origin: AR*
*Last updated: 2026-03-02*