---
product_id: 322608707
title: "HVAC OV Efficient 12'' Inch Backflow Damper - Vent Deflector - One Way Airflow Ducting Draft Blocker - Backflow Preventer - with Spring - Loaded Folding Blades"
brand: "ozo brothers"
price: "60350 Ft"
currency: HUF
in_stock: true
reviews_count: 8
url: https://www.desertcart.hu/products/322608707-hvac-ov-efficient-12-inch-backflow-damper-vent-deflector-one
store_origin: HU
region: Hungary
---

# 12" size Noise reduction Spring-loaded HVAC OV Efficient 12'' Inch Backflow Damper - Vent Deflector - One Way Airflow Ducting Draft Blocker - Backflow Preventer - with Spring - Loaded Folding Blades

**Brand:** ozo brothers
**Price:** 60350 Ft
**Availability:** ✅ In Stock

## Summary

> Breathe Easy, Live Smart! 🌬️

## Quick Answers

- **What is this?** HVAC OV Efficient 12'' Inch Backflow Damper - Vent Deflector - One Way Airflow Ducting Draft Blocker - Backflow Preventer - with Spring - Loaded Folding Blades by ozo brothers
- **How much does it cost?** 60350 Ft with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.hu](https://www.desertcart.hu/products/322608707-hvac-ov-efficient-12-inch-backflow-damper-vent-deflector-one)

## Best For

- ozo brothers enthusiasts

## Why This Product

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

## Key Features

- • **Durable Design:** Constructed from high-quality metal for long-lasting reliability.
- • **Easy Installation:** Simply insert into the duct with horizontal spring alignment for optimal performance.
- • **Versatile Compatibility:** Perfectly fits both flexible and non-flexible ducts for diverse HVAC applications.
- • **Whisper-Quiet Operation:** Equipped with an internal foam strip to eliminate rattling noise.
- • **Effortless Airflow Control:** Automatically opens and closes at low air volumes for seamless ventilation.

## Overview

The HVAC OV Efficient 12'' Inch Backflow Damper is a high-performance ventilation solution designed to enhance airflow management in various HVAC applications. With its automatic operation, versatile compatibility, and noise-reducing features, this damper ensures optimal performance and comfort in your space.

## Description

HVAC OV Efficient 12'' Inch Backflow Damper - Vent Deflector - One Way Airflow Ducting Draft Blocker - Backflow Preventer - with Spring - Loaded Folding Blades

## Features

- Backdraft damper is automatically operated and suitable for insertion into ventilation ducts of various applications.
- 12 inch duct connector suitable for use with flexible or non-flexible ventilation ducts
- Installation involves inserting the backdraft damper into the ventilation pipe, with the spring position aligned horizontally for horizontal installations to ensure optimal airflow balancing
- The backdraft flap opens and closes automatically at low air volumes, equipped with a smooth-running spring and an internal foam strip to prevent rattling noise.
- The damper has two valves and is designed for use in air conditioners, dryers, exhaust systems, extractor or range hoods, heating ducts, dryer vents, and other HVAC applications.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Manufacturer | Ozo Brothers |
| Item Weight | 2.03 pounds |
| Package Dimensions | 12.64 x 12.56 x 5.28 inches |
| Size | 12" inch / 315mm |
| Color | White |
| Material | Metal |
| Batteries Included? | No |
| Batteries Required? | No |

## Images

![HVAC OV Efficient 12'' Inch Backflow Damper - Vent Deflector - One Way Airflow Ducting Draft Blocker - Backflow Preventer - with Spring - Loaded Folding Blades - Image 1](https://m.media-amazon.com/images/I/61W2L4rczXL.jpg)
![HVAC OV Efficient 12'' Inch Backflow Damper - Vent Deflector - One Way Airflow Ducting Draft Blocker - Backflow Preventer - with Spring - Loaded Folding Blades - Image 2](https://m.media-amazon.com/images/I/61iIgJUCi0L.jpg)
![HVAC OV Efficient 12'' Inch Backflow Damper - Vent Deflector - One Way Airflow Ducting Draft Blocker - Backflow Preventer - with Spring - Loaded Folding Blades - Image 3](https://m.media-amazon.com/images/I/61F7ciPB3SL.jpg)
![HVAC OV Efficient 12'' Inch Backflow Damper - Vent Deflector - One Way Airflow Ducting Draft Blocker - Backflow Preventer - with Spring - Loaded Folding Blades - Image 4](https://m.media-amazon.com/images/I/612HRN-YN9L.jpg)
![HVAC OV Efficient 12'' Inch Backflow Damper - Vent Deflector - One Way Airflow Ducting Draft Blocker - Backflow Preventer - with Spring - Loaded Folding Blades - Image 5](https://m.media-amazon.com/images/I/6101auPBPIL.jpg)

## Available Options

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

## Customer Reviews

### ⭐⭐⭐⭐⭐ 5.0 out of 5 stars







  
  
    Just what I needed.4in backflow damper for exhaust fan
  

*by O***E on Reviewed in the United States on August 14, 2023*

Good quality, fast shipping and delivery. Excellent price. Thanks

### ⭐⭐⭐⭐ 4.0 out of 5 stars







  
  
    Good Quality... Springs are very light though
  

*by B***R on Reviewed in the United States on August 23, 2022*

Very Well Built Unit.Using this in a kitchen island hood vent... the wind caused the flappers to slap open/closed (annoying).So I put a heavier spring on the shaft...PROBLEM SOLVED!

### ⭐⭐⭐⭐⭐ 5.0 out of 5 stars







  
  
    This work great.
  

*by P***E on Reviewed in the United States on February 26, 2020*

I purchased this to prevent air from flowing back in through the extraction vent on a varnishing both I build. It worked just fine. The vent tubing fit easily on it.

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**Shop now:** [https://www.desertcart.hu/products/322608707-hvac-ov-efficient-12-inch-backflow-damper-vent-deflector-one](https://www.desertcart.hu/products/322608707-hvac-ov-efficient-12-inch-backflow-damper-vent-deflector-one)

---

*Product available on Desertcart Hungary*
*Store origin: HU*
*Last updated: 2026-03-07*