---
product_id: 209376297
title: "AC Infinity Backdraft Damper for 4\" Ducting"
brand: "ac infinity"
price: "SAR 122"
currency: SAR
in_stock: true
reviews_count: 13
category: "Ac Infinity"
url: https://www.desertcart.com.sa/products/209376297-ac-infinity-backdraft-damper-for-4-ducting
store_origin: SA
region: Saudi Arabia
---

# spring-loaded airflow blades airtight rubber gasket seal 4-inch precision fit AC Infinity Backdraft Damper for 4" Ducting

**Brand:** ac infinity
**Price:** SAR 122
**Availability:** ✅ In Stock

## Summary

> 🌀 Keep your airflow flawless and your space draft-free — because your home deserves the best!

## Quick Answers

- **What is this?** AC Infinity Backdraft Damper for 4" Ducting by ac infinity
- **How much does it cost?** SAR 122 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.com.sa](https://www.desertcart.com.sa/products/209376297-ac-infinity-backdraft-damper-for-4-ducting)

## 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

- • **One-Way Airflow Control:** Spring-loaded aluminum blades open with minimal airflow and close tightly to prevent backdrafts and debris intrusion.
- • **Flexible Mounting Options:** Install horizontally or vertically to fit your space and optimize airflow control with ease.
- • **Airtight Rubber Gasket Seal:** Outer rubber gaskets create a secure, airtight connection that locks in efficiency and blocks unwanted drafts.
- • **Durable Galvanized Steel Build:** Powder-coated alloy steel body guarantees long-lasting performance and corrosion resistance in any environment.
- • **Seamless 4" Duct Compatibility:** Perfectly engineered for standard 4-inch duct openings, ensuring effortless integration with your HVAC system.

## Overview

The AC Infinity 4" Backdraft Damper is a high-quality, spring-loaded one-way airflow insert designed for 4-inch ducting in range hoods and bathroom fans. Featuring a galvanized steel body with powder coat finish and airtight rubber gaskets, it prevents backdrafts and debris while allowing smooth airflow. Its versatile mounting options and durable construction make it a top choice for efficient, professional-grade HVAC airflow management.

## Description

AC Infinity 4" Backdraft Damper, One-Way Airflow Ducting Insert with Spring-Loaded Folding Blades for 4” Ducting in Range Hoods and Bathrooms Fans - desertcart.com

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 4 in. Duct Openings | Product Length: 5.03 inches | Finish: Powder Coat

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B0842XSTV9 |
| Best Sellers Rank | #12,550 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #17 in HVAC Ducting |
| Brand | AC Infinity |
| Brand Name | AC Infinity |
| Color | Black |
| Customer Reviews | 4.6 out of 5 stars 2,032 Reviews |
| Item Dimensions | 5 x 3.81 x 3.81 inches |
| Item dimensions L x W x H | 5 x 3.81 x 3.81 inches |
| Manufacturer | AC Infinity |
| Manufacturer Part Number | AC-BDD4-B |
| Material | Alloy Steel , Aluminum |
| Material Type | Alloy Steel, Aluminum |
| Model Number | AC-BDD4-B |
| Number of Packs | 1 |
| Size | 4" |
| UPC | 819137021303 |
| Unit Count | 1 Count |

## Product Details

- **Brand:** AC Infinity
- **Color:** Black
- **Item dimensions L x W x H:** 5 x 3.81 x 3.81 inches
- **Manufacturer:** AC Infinity
- **Material:** Alloy Steel, Aluminum
- **Number of Packs:** 1
- **Size:** 4"
- **UPC:** 819137021303
- **Unit Count:** 1 Count

## Images

![AC Infinity Backdraft Damper for 4" Ducting - Image 1](https://m.media-amazon.com/images/I/51lALiYTYEL.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 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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*Product available on Desertcart Saudi Arabia*
*Store origin: SA*
*Last updated: 2026-07-25*