---
product_id: 497238404
title: "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: "R$565"
currency: BRL
in_stock: false
reviews_count: 6
url: https://www.desertcart.com.br/products/497238404-150mm-backdraft-damper-one-way-airflow-ducting-insert-with-spring
store_origin: BR
region: Brazil
---

# spring-loaded blades airtight rubber gasket seal 6-inch duct fit 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:** R$565
**Availability:** ❌ Out of Stock

## Summary

> 🔄 Keep your airflow fresh and your space draft-free — because comfort is non-negotiable.

## Quick Answers

- **What is this?** 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?** R$565 with free shipping
- **Is it available?** Currently out of stock
- **Where can I buy it?** [www.desertcart.com.br](https://www.desertcart.com.br/products/497238404-150mm-backdraft-damper-one-way-airflow-ducting-insert-with-spring)

## 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

- • **Seamless 6-Inch Fit:** Perfectly engineered for standard 6-inch duct openings to ensure hassle-free installation.
- • **Airtight Rubber Gaskets:** Creates a secure, airtight seal preventing drafts and debris intrusion for cleaner air quality.
- • **Dual-Orientation Mounting:** Mount horizontally or vertically to suit any duct setup without compromising performance.
- • **Effortless Airflow Control:** Spring-loaded aluminum blades open with minimal airflow, maximizing ventilation efficiency.
- • **Durable Powder-Coated Steel:** Robust galvanized steel body with sleek powder coat finish for long-lasting, modern durability.

## Overview

The AC Infinity 150mm Backdraft Damper is a high-performance one-way airflow duct insert designed for 6-inch ducting in range hoods, bathroom fans, and HVAC systems. Featuring a galvanized steel body with powder coat finish, spring-loaded aluminum blades that open with minimal airflow, and airtight rubber gaskets, it prevents backflow, drafts, and debris entry. Its versatile horizontal or vertical mounting and durable construction make it an essential upgrade for efficient, clean 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: No corresponde a las medidas anunciadas no me sirvió

## 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 |
| Batteries Required? | No |
| Batteries included? | No |
| Best Sellers Rank | 78,915 in DIY & Tools ( See Top 100 in DIY & Tools ) 213 in Ducting |
| Blade length | 6 Inches |
| Certification | Meets Industry Standards |
| Colour | Black |
| Customer Reviews | 4.6 4.6 out of 5 stars (987) |
| Date First Available | 5 Jun. 2022 |
| Finish | Powder Coated |
| Included Components | Backdraft Damper |
| Installation method | Versatile (horizontal or vertical mount) |
| Item Package Quantity | 1 |
| Item Weight | 599 g |
| Item model number | AC-BDD6-B |
| Manufacturer | AC Infinity |
| Part Number | AC-BDD6-B |
| Power Source | Corded Electric |
| Product Dimensions | 13 x 14.7 x 5.78 cm; 598.74 g |
| Size | 6 Inch |
| Sound level | 59 Decibels |
| Special Features | Foldable |
| Style | Modern |
| Switch style | Pull Chain |
| Wattage | 5 watts |

## Product Details

- **Brand:** AC Infinity
- **Colour:** Black
- **Electric fan design:** Exhaust Fan
- **Mounting type:** Horizontal Mount
- **Power source:** Corded Electric
- **Product dimensions:** 13D x 14.7W x 5.8H centimetres
- **Recommended uses for product:** Exhausting, Ventilating
- **Room type:** Bathroom
- **Special feature:** Foldable
- **Style:** Modern

## Images

![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)

## 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 A***O on 11 September 2023*

No corresponde a las medidas anunciadas no me sirvió

### ⭐ Review
*by M***O on 2 January 2026*

Der Artikel ist gut verarbeitet, aber leider passt er nicht in ein 150 KG-Rohr, weil die Stange für die Klappen zu lang ist.

## 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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**Shop now:** [https://www.desertcart.com.br/products/497238404-150mm-backdraft-damper-one-way-airflow-ducting-insert-with-spring](https://www.desertcart.com.br/products/497238404-150mm-backdraft-damper-one-way-airflow-ducting-insert-with-spring)

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*Product available on Desertcart Brazil*
*Store origin: BR*
*Last updated: 2026-02-21*