---
product_id: 299460619
title: "- 4\" Inch Backdraft Damper for Straight or Flex Duct. Bathroom Exhaust Fan. Kitchen Hood Exhaust Fan and Different Dryer Fan Backflow Preventer. Steel Damper with Aluminum Valve Flaps (4\")"
brand: "ecopro vent"
price: "₹ 3201"
currency: INR
in_stock: true
category: "Ecopro Vent"
url: https://www.desertcart.in/products/299460619-4-inch-backdraft-damper-for-straight-or-flex-duct-bathroom
store_origin: IN
region: India
---

# Quick DIY press-on install Heat-resistant -22°F to 400°F Ø4 inch steel/aluminum build - 4" Inch Backdraft Damper for Straight or Flex Duct. Bathroom Exhaust Fan. Kitchen Hood Exhaust Fan and Different Dryer Fan Backflow Preventer. Steel Damper with Aluminum Valve Flaps (4")

**Brand:** ecopro vent
**Price:** ₹ 3201
**Availability:** ✅ In Stock

## Summary

> 🚀 Upgrade your airflow game with the damper that means business!

## Quick Answers

- **What is this?** - 4" Inch Backdraft Damper for Straight or Flex Duct. Bathroom Exhaust Fan. Kitchen Hood Exhaust Fan and Different Dryer Fan Backflow Preventer. Steel Damper with Aluminum Valve Flaps (4") by ecopro vent
- **How much does it cost?** ₹ 3201 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/299460619-4-inch-backdraft-damper-for-straight-or-flex-duct-bathroom)

## Best For

- ecopro vent enthusiasts

## Why This Product

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

## Key Features

- • **DIY-Friendly Installation:** Press-on design with mounting hardware lets you secure it quickly using glue, tape, or clamps—no pro needed.
- • **Heat-Resistant Performance:** Operates flawlessly from -22°F to 400°F, perfect for both indoor and outdoor environments.
- • **Multi-Use Ventilation Solution:** Ideal for bathroom exhaust, kitchen hoods, and dryer fans to prevent backflow and maintain fresh air circulation.
- • **Precision Engineered 4" Steel Damper:** Robust steel frame with aluminum valve flaps ensures durability and seamless airflow control.
- • **Universal Fit for Flex & Straight Ducts:** Effortlessly compatible with Ø4 inch round flexible or straight ducting systems for versatile HVAC setups.

## Overview

This 4-inch backdraft damper features a durable steel body with aluminum valve flaps, designed for easy installation on both flexible and straight ducts. Heat-resistant from -22°F to 400°F, it’s perfect for HVAC, bathroom, kitchen, and dryer exhaust systems, ensuring efficient backflow prevention and long-lasting performance.

## Description

Our products are made out of high quality plastic and coated steel. Guaranteed long life and durability. good compatibility with other ECOPRO VENT products.

## Features

- Ø4 Inch steel backdraft damper with aluminum valve.
- For use with the Ø4 Inch Round flexible or straight Pipe Ducting systems
- Quick and easy to assemble - DIY Press on chosen duct - flex or straight - and by using montage glue. tape or steel clamps tighten the connection.
- Perfect for heating, cooling or air conditioning - HVAC. Bathroom and kitchen air exhaust.
- Heat-resistant from: -22 °F to 400°F. / Perfect for indoor and outdoor use

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B08XXT326K |
| Best Sellers Rank | #182,507 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #400 in HVAC Ducting |
| Blade Material | Plastic |
| Brand Name | ECOPRO VENT |
| Collection Name | Ventilation Fans |
| Color | Silver |
| Control Method | Touch |
| Controller Type | Button Control |
| Customer Reviews | 4.4 4.4 out of 5 stars (167) |
| Electric Fan Design | Exhaust Fan |
| Finish Type | Painted |
| Included Components | Mounting Hardware |
| Indoor Outdoor Usage | Indoor |
| Installation Type | Duct Mount |
| Is Product Cordless | No |
| Material | Metal |
| Model Name | 9cbd9b70-f7c7-4bf2-bb79-7c8bcd5728bd |
| Model Number | 9cbd9b70-f7c7-4bf2-bb79-7c8bcd5728bd |
| Mounting Type | Duct Mount |
| Number of Blades | 5 |
| Number of Power Levels | 1 |
| Power Source | Corded Electric |
| Recommended Uses For Product | Cooling, Exhausting |
| Room Type | Kitchen |
| Size | 4" |
| Smart Home Compatibility | Not Smart Home Compatible |
| Special Features | Bladeless |
| Style | Modern |
| Switch Type | Push Button |
| Unit Count | 1.0 Count |
| Wattage | 60 watts |

## Product Details

- **Brand:** ECOPRO VENT
- **Color:** Silver
- **Controller Type:** Button Control
- **Electric fan design:** Exhaust Fan
- **Mounting Type:** Duct Mount
- **Power Source:** Corded Electric
- **Recommended Uses For Product:** Cooling, Exhausting
- **Room Type:** Kitchen
- **Special Feature:** Bladeless
- **Style:** Modern

## Images

![- 4" Inch Backdraft Damper for Straight or Flex Duct. Bathroom Exhaust Fan. Kitchen Hood Exhaust Fan and Different Dryer Fan Backflow Preventer. Steel Damper with Aluminum Valve Flaps (4") - Image 1](https://m.media-amazon.com/images/I/71jb4lQgBQL.jpg)
![- 4" Inch Backdraft Damper for Straight or Flex Duct. Bathroom Exhaust Fan. Kitchen Hood Exhaust Fan and Different Dryer Fan Backflow Preventer. Steel Damper with Aluminum Valve Flaps (4") - Image 2](https://m.media-amazon.com/images/I/71HGhwLU+dL.jpg)
![- 4" Inch Backdraft Damper for Straight or Flex Duct. Bathroom Exhaust Fan. Kitchen Hood Exhaust Fan and Different Dryer Fan Backflow Preventer. Steel Damper with Aluminum Valve Flaps (4") - Image 3](https://m.media-amazon.com/images/I/71EoEjiXnxL.jpg)
![- 4" Inch Backdraft Damper for Straight or Flex Duct. Bathroom Exhaust Fan. Kitchen Hood Exhaust Fan and Different Dryer Fan Backflow Preventer. Steel Damper with Aluminum Valve Flaps (4") - Image 4](https://m.media-amazon.com/images/I/41ImBU0ARSL.jpg)

## Available Options

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

## Questions & Answers

**Q: Can this be mounted horizontally?**
A: Yes, I put it in a room AC vent, to outside, it wasnt at a 90 degree angle, appr a 45 anyway, nice product, spring loaded, working great for me

**Q: Can the 12" mount vertically?  My application need is for my kitchen exhaust fan which exits into attic.**
A: NOTE: by most state's codes; nothing should be openly venting into the attic.  I can run through the attic, but needs to be vented outside.  That said, the flapper is spring loaded and is opened by the force of the airflow created by your exhaust fan.  I suspect it can be mounted vertically, just make sure the flappers are oriented so they open in the direction of airflow (upward) when the exhaust fan comes on.  Hope this helps.

## Frequently Bought Together

- - 4" Inch Backdraft Damper for Straight or Flex Duct. Bathroom Exhaust Fan. Kitchen Hood Exhaust Fan and Different Dryer Fan Backflow Preventer. Steel Damper with Aluminum Valve Flaps (4")
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- Aluminum Foil Tape, 2 inch x 65 Feet (3.9 mil), Insulation Adhesive Metal High Temperature Heavy Duty HVAC Tape, Silver for Ductwork, Dryer Vent, HVAC

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*Product available on Desertcart India*
*Store origin: IN*
*Last updated: 2026-07-02*