---
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: "511 kr"
currency: NOK
in_stock: true
category: "Ecopro Vent"
url: https://www.desertcart.no/products/299460619-4-inch-backdraft-damper-for-straight-or-flex-duct-bathroom
store_origin: NO
region: Norway
---

# Quick DIY press-on installation Heat-resistant -22°F to 400°F 4" steel damper fits flex & straight ducts - 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:** 511 kr
**Availability:** ✅ In Stock

## Summary

> 🚀 Stop airflow backdrafts like a pro—upgrade your ventilation game today!

## 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?** 511 kr with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.no](https://www.desertcart.no/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

- • **Effortless DIY Setup:** No pro needed—press on, secure with glue, tape, or clamps, and you’re done. Save time and avoid costly installs.
- • **Seamless HVAC Integration:** Designed for perfect compatibility with flexible or straight 4" ducts, ensuring smooth airflow and zero backflow.
- • **Built to Withstand Extremes:** Engineered with heat-resistant materials that perform flawlessly from freezing -22°F to scorching 400°F environments.
- • **Trusted Quality & Longevity:** Crafted from premium coated steel and plastic blades, backed by ECOPRO VENT’s reputation and glowing 4.4-star reviews.
- • **Versatile Indoor & Outdoor Use:** Whether it’s your kitchen hood, bathroom exhaust, or dryer fan, this damper handles it all with durable steel and aluminum flaps.

## Overview

The 4" Backdraft Damper by ECOPRO VENT is a durable, heat-resistant steel and aluminum valve solution designed for 4" flexible or straight duct systems. Ideal for HVAC, kitchen, bathroom, and dryer exhausts, it offers quick DIY installation and reliable backflow prevention, performing efficiently in temperatures from -22°F to 400°F for both indoor and outdoor use.

## 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 | #205,936 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #565 in HVAC Ducting |
| Blade Material | Plastic |
| Brand | ECOPRO VENT |
| Brand Name | ECOPRO VENT |
| Collection Name | Ventilation Fans |
| Color | Silver |
| Control Method | Touch |
| Controller Type | Button Control |
| Customer Reviews | 4.4 out of 5 stars 168 Reviews |
| Electric Fan Design | Exhaust Fan |
| Electric fan design | Exhaust Fan |
| Finish Type | Painted |
| Included Components | Mounting Hardware |
| Indoor Outdoor Usage | Indoor |
| Installation Type | Duct Mount |
| Manufacturer | ECOPRO VENT |
| 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 Packs | 1 |
| Number of Power Levels | 1 |
| Power Source | Corded Electric |
| Recommended Uses For Product | Cooling, Exhausting |
| Room Type | Kitchen |
| Size | 4" |
| Special Features | Bladeless |
| Style | Modern |
| Switch Type | Push Button |
| Unit Count | 1 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)

## 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 Norway*
*Store origin: NO*
*Last updated: 2026-10-12*