---
product_id: 643220787
title: "Hon&Guan Duct Damper 4 inch, Backdraft Damper One-Way Airflow Vent Damper Backflow Preventer for 4 Inch Duct Dryer Vent Hose"
brand: "hon&guan"
price: "VT23040"
currency: VUV
in_stock: true
url: https://www.desertcart.vu/products/643220787-hon-and-guan-duct-damper-4-inch-backdraft-damper-one
store_origin: VU
region: Vanuatu
---

# Galvanized Steel One-Way Airflow Lightweight Design Hon&Guan Duct Damper 4 inch, Backdraft Damper One-Way Airflow Vent Damper Backflow Preventer for 4 Inch Duct Dryer Vent Hose

**Brand:** hon&guan
**Price:** VT23040
**Availability:** ✅ In Stock

## Summary

> 🚀 Elevate Your Airflow Game!

## Quick Answers

- **What is this?** Hon&Guan Duct Damper 4 inch, Backdraft Damper One-Way Airflow Vent Damper Backflow Preventer for 4 Inch Duct Dryer Vent Hose by hon&guan
- **How much does it cost?** VT23040 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.vu](https://www.desertcart.vu/products/643220787-hon-and-guan-duct-damper-4-inch-backdraft-damper-one)

## Best For

- hon&guan enthusiasts

## Why This Product

- Trusted hon&guan brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **🤫 Quiet Operation:** Rubber ring ensures silent closure.
- • **🔒 Secure Your Space:** Prevent unwanted airflow with precision engineering.
- • **💨 Optimal Ventilation:** Enhances airflow while blocking backdrafts.
- • **🌍 Versatile Applications:** Perfect for kitchens, bathrooms, and HVAC systems.
- • **⚙️ Effortless Installation:** Designed for easy horizontal setup.

## Overview

The Hon&Guan Duct Damper is a high-quality, 4-inch backdraft damper made from durable galvanized steel and designed for optimal one-way airflow. Ideal for a variety of HVAC applications, this lightweight damper features a user-friendly installation process and ensures quiet operation, making it a must-have for any modern home.

## Description

Hon&Guan Duct Damper 4 inch, Backdraft Damper One-Way Airflow Vent Damper Backflow Preventer for 4 Inch Duct Dryer Vent Hose

## Features

- 【Material】Hon&Guan 4 backdraft damper and the flap leaves is made of a galvanized steel, the axis are made of aluminum, while the spring are made of carbon steel-2PCS
- 【Installation method】The position of the 4 inch duct damper spring should be horizontal for horizontal installations so that it can open and close optimally
- 【Wide applications】Back draught valves can be inserted into havc ducting which are flexible or non-flexible. Designed for use with range hoods, bathroom fans, kitchen and other home HVAC applications
- 【Lightweight valve wings】The valve wings open under the pressure created by the airflow; when the air flows in the opposite direction, it is automatically closed under the action of the spring, so as to cut off the flow
- 【Backdraft Shutter】Hon&Guan vent damper designed to improve ventilation by preventing air from re-circulating when the fans are not in use, rubber ring ensure 100% closure and quiet closing

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Manufacturer | Hon&Guan |
| Country of Origin | USA |
| Product Dimensions | 10.16 x 10.16 x 17.78 cm; 222.26 g |
| ASIN | B0C1Z3CMJV |

## Images

![Hon&Guan Duct Damper 4 inch, Backdraft Damper One-Way Airflow Vent Damper Backflow Preventer for 4 Inch Duct Dryer Vent Hose - Image 1](https://m.media-amazon.com/images/I/617RO7vROjL.jpg)
![Hon&Guan Duct Damper 4 inch, Backdraft Damper One-Way Airflow Vent Damper Backflow Preventer for 4 Inch Duct Dryer Vent Hose - Image 2](https://m.media-amazon.com/images/I/710NQ7sBM1L.jpg)
![Hon&Guan Duct Damper 4 inch, Backdraft Damper One-Way Airflow Vent Damper Backflow Preventer for 4 Inch Duct Dryer Vent Hose - Image 3](https://m.media-amazon.com/images/I/61hDknzZleL.jpg)
![Hon&Guan Duct Damper 4 inch, Backdraft Damper One-Way Airflow Vent Damper Backflow Preventer for 4 Inch Duct Dryer Vent Hose - Image 4](https://m.media-amazon.com/images/I/7167fL5uOzL.jpg)
![Hon&Guan Duct Damper 4 inch, Backdraft Damper One-Way Airflow Vent Damper Backflow Preventer for 4 Inch Duct Dryer Vent Hose - Image 5](https://m.media-amazon.com/images/I/61loKx2xINL.jpg)

## Available Options

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

## Frequently Bought Together

- Hon&Guan Duct Damper 4 inch, Backdraft Damper One-Way Airflow Vent Damper Backflow Preventer for 4 Inch Duct Dryer Vent Hose
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**Shop now:** [https://www.desertcart.vu/products/643220787-hon-and-guan-duct-damper-4-inch-backdraft-damper-one](https://www.desertcart.vu/products/643220787-hon-and-guan-duct-damper-4-inch-backdraft-damper-one)

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*Product available on Desertcart Vanuatu*
*Store origin: VU*
*Last updated: 2026-03-05*