---
product_id: 185858231
title: "AC Infinity 150mm Backdraft Damper, One-Way Airflow Ducting Insert"
brand: "ac infinity"
price: "417 kr"
currency: DKK
in_stock: true
reviews_count: 13
category: "Ac Infinity"
url: https://www.desertcart.dk/products/185858231-ac-infinity-150mm-backdraft-damper-one-way-airflow-ducting-insert
store_origin: DK
region: Denmark
---

# 150mm (6”) precision fit Spring-loaded aluminum blades Airtight rubber gasket seal AC Infinity 150mm Backdraft Damper, One-Way Airflow Ducting Insert

**Brand:** ac infinity
**Price:** 417 kr
**Availability:** ✅ In Stock

## Summary

> 🛠️ Upgrade your airflow game — keep the fresh in, the backdrafts out!

## Quick Answers

- **What is this?** AC Infinity 150mm Backdraft Damper, One-Way Airflow Ducting Insert by ac infinity
- **How much does it cost?** 417 kr with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.dk](https://www.desertcart.dk/products/185858231-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

- • **Versatile mounting options:** Install horizontally or vertically to suit any ducting layout and prevent backflow effectively.
- • **Airtight rubber gasket seal:** Prevents unwanted drafts and energy loss with a secure, no-leak connection.
- • **Spring-loaded folding blades:** Ultra-responsive blades open with minimal airflow, maximizing efficiency and airflow control.
- • **Durable galvanized steel body:** Powder-coated finish resists corrosion, promising long-lasting performance and sleek aesthetics.
- • **Seamless 6-inch duct compatibility:** Perfectly engineered for standard HVAC systems, ensuring effortless integration.

## Overview

The AC Infinity 150mm Backdraft Damper is a high-performance one-way airflow duct insert designed for 6-inch ducting in range hoods and bathroom fans. Featuring a galvanized steel body with powder coat finish, spring-loaded aluminum blades, and airtight rubber gaskets, it prevents backflow and debris intrusion while ensuring minimal airflow resistance. Its versatile horizontal or vertical mounting and durable construction make it an essential upgrade for efficient, draft-free HVAC systems.

## Description

Buy AC Infinity 150mm Backdraft Damper, One-Way Airflow Ducting Insert | With Spring-Loaded Folding Blades for 6” Ducting in Range Hoods and Bathrooms Fans: Ducting - desertcart.com ✓ FREE DELIVERY possible on eligible purchases

Review: Great quality and did the job - AC Infinity stuff is always great, this is no exception. I’ve got two of these hooked up in the attic so I can run two exhaust fans to one outlook. They lit the air flow freely, but only in the direction I want. Allows me to pass code! Nice product, easy install and since it’s in the attic no perceived noise inside (I don’t know if it’s load next to it). Good value!
Review: Tight seal and quality construction - I needed some sort of back draft prevention for my bathroom vent fan setup because I was getting bugs and draft in my basement bathroom. These fit right up to other 4 inch ducting, and I used rubber connectors to secure these on. They look sleek, work great, and they have a great quality seal and don't let air back in. They have a double flap to prevent back drafting. I used two of them in my set up to keep each line isolated before a combining y connection

## 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 | #18,172 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #23 in HVAC Ducting #408 in Pipe Fittings & Pipes |
| Brand | AC Infinity |
| Brand Name | AC Infinity |
| Color | Black |
| Connector Type | AC Power Plug |
| Customer Reviews | 4.6 out of 5 stars 2,034 Reviews |
| Global Trade Identification Number | 00819137021310 |
| Included Components | Backdraft Damper |
| Item Dimensions | 5.12 x 5.79 x 2.28 inches |
| Item Weight | 1.3 pounds |
| Item dimensions L x W x H | 5.12 x 5.79 x 2.28 inches |
| Manufacturer | AC Infinity |
| Manufacturer Part Number | AC-BDD6-B |
| Material | Alloy Steel , Aluminum |
| Material Type | Alloy Steel, Aluminum |
| Model Number | AC-BDD6-B |
| Number of Packs | 1 |
| Size | 6 Inch |
| UPC | 819137021310 |
| Unit Count | 1 Count |

## Product Details

- **Brand:** AC Infinity
- **Color:** Black
- **Connector Type:** AC Power Plug
- **Global Trade Identification Number:** 00819137021310
- **Item Weight:** 1.3 pounds
- **Item dimensions L x W x H:** 5.12 x 5.79 x 2.28 inches
- **Manufacturer:** AC Infinity
- **Material:** Alloy Steel, Aluminum
- **Number of Packs:** 1
- **Size:** 6 Inch

## Images

![AC Infinity 150mm Backdraft Damper, One-Way Airflow Ducting Insert - Image 1](https://m.media-amazon.com/images/I/51ML+386kaL.jpg)
![AC Infinity 150mm Backdraft Damper, One-Way Airflow Ducting Insert - Image 2](https://m.media-amazon.com/images/I/51e9CJ85yIL.jpg)
![AC Infinity 150mm Backdraft Damper, One-Way Airflow Ducting Insert - Image 3](https://m.media-amazon.com/images/I/51z58L5SNxL.jpg)
![AC Infinity 150mm Backdraft Damper, One-Way Airflow Ducting Insert - Image 4](https://m.media-amazon.com/images/I/51EbBrYVTqL.jpg)

## Available Options

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

## Customer Reviews

### ⭐⭐⭐⭐⭐ Great quality and did the job
*by J***R on May 24, 2026*

AC Infinity stuff is always great, this is no exception. I’ve got two of these hooked up in the attic so I can run two exhaust fans to one outlook. They lit the air flow freely, but only in the direction I want. Allows me to pass code! Nice product, easy install and since it’s in the attic no perceived noise inside (I don’t know if it’s load next to it). Good value!

### ⭐⭐⭐⭐⭐ Tight seal and quality construction
*by C***. on December 2, 2025*

I needed some sort of back draft prevention for my bathroom vent fan setup because I was getting bugs and draft in my basement bathroom. These fit right up to other 4 inch ducting, and I used rubber connectors to secure these on. They look sleek, work great, and they have a great quality seal and don't let air back in. They have a double flap to prevent back drafting. I used two of them in my set up to keep each line isolated before a combining y connection

### ⭐⭐⭐⭐⭐ Performs well. Nicely made product at a fair price!
*by S***E on April 8, 2026*

The AC Infinity products I’ve been getting all seen to be superior quality pieces (fan, collars, dampers). Couldn’t be happier. Shutters open easily but close solidly when there’s no air flow. Thank you a great product at a fair price!

## Frequently Bought Together

- AC Infinity 6" Backdraft Damper, One-Way Airflow Ducting Insert with Spring-Loaded Folding Blades for 6” Ducting in Range Hoods and Bathrooms Fans
- AC Infinity Flexible 6-Inch Aluminum Ducting, Heavy-Duty Four-Layer Protection, 25-Feet Long for Heating Cooling Ventilation and Exhaust
- AC Infinity Noise Reduction Clamp 6-Inch, Duct Coupler with Stainless Steel Clamps, Flexible Rubber Coupling for Inline Fans and Carbon Filters in Growing and HVAC

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*Product available on Desertcart Denmark*
*Store origin: DK*
*Last updated: 2026-08-05*