---
product_id: 312032422
title: "6\" to 4\" Inch Duct Reducer. Round Reducer. Duct Fitting Pipe Increaser/Reducer PVC DWV (Drain, Waste and Vent) Reducing Coupling (Metal, 6\" to 4\")"
brand: "ozo brothers"
price: "₩4033"
currency: KRW
in_stock: true
url: https://www.desertcart.kr/products/312032422-6-to-4-inch-duct-reducer-round-reducer-duct-fitting
store_origin: KR
region: South Korea
---

# Lightweight design Easy installation 6" to 4" size 6" to 4" Inch Duct Reducer. Round Reducer. Duct Fitting Pipe Increaser/Reducer PVC DWV (Drain, Waste and Vent) Reducing Coupling (Metal, 6" to 4")

**Brand:** ozo brothers
**Price:** ₩4033
**Availability:** ✅ In Stock

## Summary

> 🔄 Transform Your Ducting Game!

## Quick Answers

- **What is this?** 6" to 4" Inch Duct Reducer. Round Reducer. Duct Fitting Pipe Increaser/Reducer PVC DWV (Drain, Waste and Vent) Reducing Coupling (Metal, 6" to 4") by ozo brothers
- **How much does it cost?** ₩4033 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.kr](https://www.desertcart.kr/products/312032422-6-to-4-inch-duct-reducer-round-reducer-duct-fitting)

## 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

- • **Effortless Installation:** Lightweight design makes setup a breeze, even for DIY novices.
- • **Robust Metal Construction:** Durable brass finish ensures longevity and reliability.
- • **Variety of Configurations:** Choose from multiple sizes to fit your specific needs.
- • **Versatile Ducting Solution:** Seamlessly connect different duct sizes for optimal airflow.
- • **Perfect for Multiple Applications:** Ideal for HVAC systems, kitchen hoods, and hydroponics.

## Overview

The 6" to 4" Inch Duct Reducer is a robust and versatile fitting designed for connecting different duct sizes in various applications, including HVAC systems and kitchen ventilation. Made from durable metal with a brass finish, this lightweight reducer is easy to install and perfect for both residential and commercial use.

## Description

Air ducts are designed for use in small living spaces and office premises, where the ventilation system is most often locted under a suspended ceiling. Plastic rectangular or round system allows easy installation of small air lines with different turning angles for the horizontal and vertical planes, due to the available convenient auxiliary connections and adapters.

## Features

- ✅ This is a very practical, robust, solid duct reducer or increaser which can be used when connecting two different, solid or flexible ducts or ducts to ventilators, or vice versa, from small to large, larger to small.
- ✅ Can be used with HVAC systems, bathroom extractor fans, inline ventilators, cooker hoods, tumble dryers, hydroponics, kitchens or, anywhere else in the apartment, home or office space.
- ✅ Lightweight, very easy to install.
- ✅ Offer variety of sizes and configurations for hose / pipe / duct connecting.
- ✅ Perfectly suited for ducting your Tumble Dryer, Bathroom or Kitchen extractor fan, Hydroponics, In-Line Extract Fans, or Cooker Hood.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Size | 6" to 4" |
| Material | Metal |
| Brand | Ozo Brothers |
| Connector Type | Reducer |
| Exterior Finish | Brass |
| Item Weight | 0.01 Ounces |
| Number of Pieces | 1 |
| Manufacturer | Ozo Brothers |
| Item Weight | 0.01 ounces |
| Package Dimensions | 7.24 x 6.1 x 6.02 inches |
| Measurement System | inch |
| Batteries Included? | No |
| Batteries Required? | No |

## Product Details

- **Size:** 6" to 4"
- **Material:** Metal
- **Brand:** Ozo Brothers
- **Connector Type:** Reducer
- **Exterior Finish:** Brass
- **Item Weight:** 0.01 Ounces
- **Number of Pieces:** 1
- **Manufacturer:** Ozo Brothers

## Images

![6" to 4" Inch Duct Reducer. Round Reducer. Duct Fitting Pipe Increaser/Reducer PVC DWV (Drain, Waste and Vent) Reducing Coupling (Metal, 6" to 4") - Image 1](https://m.media-amazon.com/images/I/81LuJE7QzKS.jpg)

## Available Options

This product comes in different **Size Name, Material Type** options.

## Questions & Answers

**Q: Is the 6" side slightly smaller (~5.75), so a 6" AC vent hose fits OVER the gasket? Another 6-4 I bought didn't, since the metal was 6" diam.**
A: Yes and they have rubber seal for air tight fit.

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**Shop now:** [https://www.desertcart.kr/products/312032422-6-to-4-inch-duct-reducer-round-reducer-duct-fitting](https://www.desertcart.kr/products/312032422-6-to-4-inch-duct-reducer-round-reducer-duct-fitting)

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*Product available on Desertcart South Korea*
*Store origin: KR*
*Last updated: 2026-02-04*