---
product_id: 497238403
title: "AC Infinity 150mm Backdraft Damper, One-Way Airflow Ducting Insert with Spring-Loaded Folding Blades for 150mm Ducting in Range Hoods and Bathrooms Fans, 6-Inch"
brand: "ac infinity"
price: "R1020"
currency: ZAR
in_stock: true
reviews_count: 6
category: "Ac Infinity"
url: https://www.desertcart.co.za/products/497238403-ac-infinity-150mm-backdraft-damper-one-way-airflow-ducting-insert
store_origin: ZA
region: South Africa
---

# Spring-loaded aluminum blades for effortless airflow Rubber gaskets ensure airtight seal Galvanized steel body for durability AC Infinity 150mm Backdraft Damper, One-Way Airflow Ducting Insert with Spring-Loaded Folding Blades for 150mm Ducting in Range Hoods and Bathrooms Fans, 6-Inch

**Brand:** ac infinity
**Price:** R1020
**Availability:** ✅ In Stock

## Summary

> 🌀 Seal the airflow, unlock comfort — no more drafts, only fresh vibes!

## Quick Answers

- **What is this?** AC Infinity 150mm Backdraft Damper, One-Way Airflow Ducting Insert with Spring-Loaded Folding Blades for 150mm Ducting in Range Hoods and Bathrooms Fans, 6-Inch by ac infinity
- **How much does it cost?** R1020 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.co.za](https://www.desertcart.co.za/products/497238403-ac-infinity-150mm-backdraft-damper-one-way-airflow-ducting-insert)

## Best For

- ac infinity enthusiasts

## Why This Product

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

## Key Features

- • **Built to Last:** Robust galvanized steel body with powder coat finish resists corrosion and wear, promising long-term performance.
- • **Airtight Seal, Zero Drafts:** Dual rubber gaskets create a secure grip and airtight barrier, blocking cold drafts and debris from invading your space.
- • **Effortless One-Way Airflow:** Spring-loaded aluminum blades open with minimal airflow, maximizing ventilation efficiency without energy waste.
- • **Versatile Mounting Options:** Mount horizontally or vertically to fit any ducting setup, ensuring seamless integration with your HVAC system.
- • **Perfect Fit for 6-Inch Ducts:** Precisely engineered 5.03-inch length fits standard 6-inch duct openings for easy installation and reliable operation.

## Overview

The AC Infinity 150mm Backdraft Damper is a premium one-way airflow duct insert designed for 6-inch ducting in range hoods, bathroom fans, and HVAC systems. Featuring a galvanized steel body, spring-loaded aluminum blades, and dual rubber gaskets, it prevents backflow, drafts, and debris with an airtight seal. Its versatile horizontal or vertical mounting and powder-coated finish ensure durability and easy integration, making it a must-have upgrade for efficient, draft-free ventilation.

## Description

An antidraft duct insert designed for use with range hoods, bathroom fans and other home HVAC applications. Features outer rubber gaskets that create an airtight seal and grip between the damper and ducts. Mounts horizontally or vertically to prevent backflow and debris from entering ducting. Galvanized steel body with spring-loaded aluminum damper blades that open with minimal airflow. Fit for 6 in. Duct Openings | Product Length: 5.03 inches | Finish: Powder Coat Product Description A ventilation ducting tool designed for insertion into 6” ducting to prevent cold drafts and debris from flowing into ventilation systems. Built to be embedded in ducts, the backdraft damper is made of sturdy galvanized steel and features two rings of outer rubber gaskets. This enables it to grip your ducting with an airtight seal in either a horizontal or vertical orientation. The butterfly damper blades are made of aluminum and are equipped with a light spring that folds with minimal airflow. Applications The spring-loaded antidraft damper is built for heavy-duty performance in applications like overhead range hoods in kitchens, bathroom fans and tumble dryers. It can be fully or partially inserted into your duct work using the rubber rings to hold itself in place. Other one-way airflow uses include keep pilot lights burning in water heaters and keeping debris from entering inline duct fans in grow tents. Product Identification Manufacturer AC Infinity Inc. Product Name Backdraft Damper, 6" Product Model AC-BDD6-B UPC Code 819137021310 Product and Mounting Dimensions Duct Opening Size 6" Product Length 5.03 in. (12.8 cm) Product Performance and Technical Specs Whole Body Material Steel Shutter Material Aluminum Color Black Finish Powder Coat

Review: Top bit of kit - Brilliant, sorted out the air coming into the property instantly! Felt warmer straight away, and looks very tidy and good quality. FOr the price of it as well, cant fault it at all.
Review: Very solid unit. Walls are easily 2-3x thicker than the cheap ebay one I had before. Great design and quality.

## Features

- An antidraft duct insert designed for use with range hoods, bathroom fans and other home HVAC applications.
- Features outer rubber gaskets that create an airtight seal and grip between the damper and ducts.
- Mounts horizontally or vertically to prevent backflow and debris from entering ducting.
- Galvanized steel body with spring-loaded aluminum damper blades that open with minimal airflow.
- Fit for 6 in. Duct Openings | Product Length: 5.03 inches | Finish: Powder Coat

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B0842XLY96 |
| Best Sellers Rank | 62,811 in DIY & Tools ( See Top 100 in DIY & Tools ) 151 in Ducting |
| Brand | AC Infinity |
| Colour | Black |
| Country of Origin | China |
| Customer Reviews | 4.5 4.5 out of 5 stars (1,856) |
| Global Trade Identification Number | 00819137021310 |
| Included Components | Backdraft Damper |
| Item Dimensions | 13 x 14.7 x 5.8 centimetres |
| Item Weight | 1.32 Pounds |
| Manufacturer | AC Infinity |
| Material | Metal |
| Model Number | AC-BDD6-B |
| Size | 6 Inch |
| UPC | 819137021310 |
| Unit Count | 1.0 Count |

## Product Details

- **Brand:** AC Infinity
- **Colour:** Black
- **Global Trade Identification Number:** 00819137021310
- **Item dimensions L x W x H:** 13 x 14.7 x 5.8 centimetres
- **Item weight:** 1.32 Pounds
- **Manufacturer:** AC Infinity
- **Material:** Metal
- **Size:** 6 Inch
- **UPC:** 819137021310

## Images

![AC Infinity 150mm Backdraft Damper, One-Way Airflow Ducting Insert with Spring-Loaded Folding Blades for 150mm Ducting in Range Hoods and Bathrooms Fans, 6-Inch - Image 1](https://m.media-amazon.com/images/I/51ML+386kaL.jpg)
![AC Infinity 150mm Backdraft Damper, One-Way Airflow Ducting Insert with Spring-Loaded Folding Blades for 150mm Ducting in Range Hoods and Bathrooms Fans, 6-Inch - Image 2](https://m.media-amazon.com/images/I/51e9CJ85yIL.jpg)
![AC Infinity 150mm Backdraft Damper, One-Way Airflow Ducting Insert with Spring-Loaded Folding Blades for 150mm Ducting in Range Hoods and Bathrooms Fans, 6-Inch - Image 3](https://m.media-amazon.com/images/I/51z58L5SNxL.jpg)
![AC Infinity 150mm Backdraft Damper, One-Way Airflow Ducting Insert with Spring-Loaded Folding Blades for 150mm Ducting in Range Hoods and Bathrooms Fans, 6-Inch - Image 4](https://m.media-amazon.com/images/I/51EbBrYVTqL.jpg)

## Available Options

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

## Customer Reviews

### ⭐⭐⭐⭐⭐ Top bit of kit
*by C***S on 7 January 2026*

Brilliant, sorted out the air coming into the property instantly! Felt warmer straight away, and looks very tidy and good quality. FOr the price of it as well, cant fault it at all.

### ⭐⭐⭐⭐⭐ Review
*by C***O on 7 December 2024*

Very solid unit. Walls are easily 2-3x thicker than the cheap ebay one I had before. Great design and quality.

### ⭐ Review
*by T***E on 21 December 2025*

Das größte Außenmaß ist 206mm nicht 200mm. Die Klappen schlagen hart an und sind ungedämpft. Schöne Optik, aber mehr sicher nicht

## Frequently Bought Together

- AC Infinity 4" Backdraft Damper, One-Way Airflow Ducting Insert with Spring-Loaded Folding Blades for 4” Ducting in Range Hoods and Bathrooms Fans
- AC Infinity Flexible 4-Inch Aluminum Ducting, Heavy-Duty Four-Layer Protection, 25-Feet Long for Heating Cooling Ventilation and Exhaust
- AC Infinity Flexible 4-Inch Aluminum Ducting, Heavy-Duty Four-Layer Protection, 8-Feet Long for Heating Cooling Ventilation and Exhaust

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**Shop now:** [https://www.desertcart.co.za/products/497238403-ac-infinity-150mm-backdraft-damper-one-way-airflow-ducting-insert](https://www.desertcart.co.za/products/497238403-ac-infinity-150mm-backdraft-damper-one-way-airflow-ducting-insert)

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*Product available on Desertcart South Africa*
*Store origin: ZA*
*Last updated: 2026-03-29*