---
product_id: 209376297
title: "4\" Backdraft Damper, One-Way Airflow Ducting Insert with Spring-Loaded Folding Blades for 4” Ducting in Range Hoods and Bathrooms Fans"
brand: "ac infinity"
price: "₹ 3934"
currency: INR
in_stock: true
category: "Ac Infinity"
url: https://www.desertcart.in/products/209376297-4-backdraft-damper-one-way-airflow-ducting-insert-with-spring
store_origin: IN
region: India
---

# spring-loaded airflow blades airtight rubber gasket seal 4-inch duct fit 4" Backdraft Damper, One-Way Airflow Ducting Insert with Spring-Loaded Folding Blades for 4” Ducting in Range Hoods and Bathrooms Fans

**Brand:** ac infinity
**Price:** ₹ 3934
**Availability:** ✅ In Stock

## Summary

> 🌀 Keep your airflow flawless — no backdrafts, no compromises!

## Quick Answers

- **What is this?** 4" Backdraft Damper, One-Way Airflow Ducting Insert with Spring-Loaded Folding Blades for 4” Ducting in Range Hoods and Bathrooms Fans by ac infinity
- **How much does it cost?** ₹ 3934 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.in](https://www.desertcart.in/products/209376297-4-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

- • **One-Way Airflow Control:** Spring-loaded aluminum blades ensure efficient backdraft prevention with minimal airflow resistance.
- • **Airtight Seal Technology:** Durable rubber gaskets create a secure, airtight connection to block unwanted drafts and debris.
- • **Precision Fit for 4" Ducts:** Seamlessly integrates with standard 4-inch HVAC ducting for hassle-free installation.
- • **Versatile Mounting Options:** Mounts horizontally or vertically to suit any ducting layout without compromising performance.
- • **Robust Galvanized Steel Build:** Powder-coated alloy steel body guarantees long-lasting durability and corrosion resistance.

## Overview

The AC Infinity 4" Backdraft Damper is a high-performance one-way airflow duct insert designed for range hoods and bathroom fans. Featuring spring-loaded aluminum blades and airtight rubber gaskets, it prevents backflow and debris intrusion while fitting standard 4-inch ducts. Its galvanized steel body with powder coat finish ensures durability, and flexible mounting options make it ideal for any HVAC setup.

## 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

## 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 | #13,446 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #15 in HVAC Ducting |
| Brand Name | AC Infinity |
| Color | Black |
| Customer Reviews | 4.6 4.6 out of 5 stars (2,024) |
| Item Dimensions | 5 x 3.81 x 3.81 inches |
| Manufacturer | AC Infinity |
| Manufacturer Part Number | AC-BDD4-B |
| Material Type | Alloy Steel, Aluminum |
| Model Number | AC-BDD4-B |
| 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

![4" Backdraft Damper, One-Way Airflow Ducting Insert with Spring-Loaded Folding Blades for 4” Ducting in Range Hoods and Bathrooms Fans - Image 1](https://m.media-amazon.com/images/I/51lALiYTYEL.jpg)

## Available Options

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

## 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.in/products/209376297-4-backdraft-damper-one-way-airflow-ducting-insert-with-spring](https://www.desertcart.in/products/209376297-4-backdraft-damper-one-way-airflow-ducting-insert-with-spring)

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*Product available on Desertcart India*
*Store origin: IN*
*Last updated: 2026-06-24*