---
product_id: 242042704
title: "Repa Market 5\" to 4\" Inch Duct Reducer/Increaser – Galvanized Steel Vent Pipe Adapter HVAC & Dryer Vent Systems – Round Metal Coupling Connector for Exhaust Fans, Bathroom Ventilation, Kitchen Hoods"
brand: "repa market"
price: "₩65617"
currency: KRW
in_stock: true
url: https://www.desertcart.kr/products/242042704-repa-market-5-to-4-inch-duct-reducer-increaser-galvanized
store_origin: KR
region: South Korea
---

# Home/Office Use Sturdy Steel Easy Install Repa Market 5" to 4" Inch Duct Reducer/Increaser – Galvanized Steel Vent Pipe Adapter HVAC & Dryer Vent Systems – Round Metal Coupling Connector for Exhaust Fans, Bathroom Ventilation, Kitchen Hoods

**Brand:** repa market
**Price:** ₩65617
**Availability:** ✅ In Stock

## Summary

> 🔄 Transform Your Ducting Game!

## Quick Answers

- **What is this?** Repa Market 5" to 4" Inch Duct Reducer/Increaser – Galvanized Steel Vent Pipe Adapter HVAC & Dryer Vent Systems – Round Metal Coupling Connector for Exhaust Fans, Bathroom Ventilation, Kitchen Hoods by repa market
- **How much does it cost?** ₩65617 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/242042704-repa-market-5-to-4-inch-duct-reducer-increaser-galvanized)

## Best For

- repa market enthusiasts

## Why This Product

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

## Key Features

- • **DIY Friendly:** Ideal for both professional trades and home improvement enthusiasts.
- • **Compact Design:** Perfectly sized at 5.04 x 3.54 inches for easy integration.
- • **Robust Construction:** Crafted from galvanized steel for durability and longevity.
- • **Lightweight Yet Strong:** Weighs only 4.6 ounces, making installation a breeze.
- • **Versatile Compatibility:** Seamlessly connects various duct sizes for HVAC, fans, and more.

## Overview

The 5" to 4" Inch Duct Reducer Round Fitting Pipe Increaser is a versatile and durable solution for connecting different duct sizes in various applications, from HVAC systems to kitchen exhausts. Made from robust galvanized steel, this reducer is designed for easy installation and is perfect for both residential and commercial use.

## Description

Repa Market 5" to 4" Inch Duct Reducer/Increaser – Galvanized Steel Vent Pipe Adapter HVAC & Dryer Vent Systems – Round Metal Coupling Connector for Exhaust Fans, Bathroom Ventilation, Kitchen Hoods

## Features

- 125mm Male to 100mm Male Round Ducting Adaptor. 5" (4.92") to 4" (3.93")
- 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.
- Sturdy Steel ducting is perfect for DIY and Trade use.
- This is a very practical robust, all in one, 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.
- Perfectly suited for ducting your Tumble Dryer, Bathroom or Any type of extractor fan, Hydroponics, In-Line Extract Fans, or Cooker Hood.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Size | 4 to 5 Inch / 100 to 125 mm |
| Material | Metal |
| Brand | Repa Market |
| Color | Silver |
| Item dimensions L x W x H | 5.04 x 3.54 x 5.04 inches |
| Connector Type | Reducer |
| Thread Size | 1/2 inch |
| Exterior Finish | Zinc |
| Thread Type | NPT |
| Number of Pieces | 1 |
| Manufacturer | Repa Market |
| Item Weight | 4.6 ounces |
| Product Dimensions | 5.04 x 3.54 x 5.04 inches |
| Country of Origin | Latvia |
| Item model number | REPA-MARKET-XXXX |
| Style | Reducer/Increaser |
| Finish | Galvanized Steel |
| Shape | Circular |
| Item Package Quantity | 1 |
| Special Features | Easy to Install |
| Usage | Commercial/Residential |
| Included Components | Galvanized Steel Reducer/Increaser |
| Batteries Included? | No |
| Batteries Required? | No |

## Product Details

- **Size:** 4 to 5 Inch / 100 to 125 mm
- **Material:** Metal
- **Brand:** Repa Market
- **Color:** Silver
- **Item dimensions L x W x H:** 5.04 x 3.54 x 5.04 inches
- **Connector Type:** Reducer
- **Thread Size:** 1/2 inch
- **Exterior Finish:** Zinc
- **Thread Type:** NPT
- **Number of Pieces:** 1

## Images

![Repa Market 5" to 4" Inch Duct Reducer/Increaser – Galvanized Steel Vent Pipe Adapter HVAC & Dryer Vent Systems – Round Metal Coupling Connector for Exhaust Fans, Bathroom Ventilation, Kitchen Hoods - Image 1](https://m.media-amazon.com/images/I/81xBqb6DV4L.jpg)
![Repa Market 5" to 4" Inch Duct Reducer/Increaser – Galvanized Steel Vent Pipe Adapter HVAC & Dryer Vent Systems – Round Metal Coupling Connector for Exhaust Fans, Bathroom Ventilation, Kitchen Hoods - Image 2](https://m.media-amazon.com/images/I/71e7kxFSjXL.jpg)
![Repa Market 5" to 4" Inch Duct Reducer/Increaser – Galvanized Steel Vent Pipe Adapter HVAC & Dryer Vent Systems – Round Metal Coupling Connector for Exhaust Fans, Bathroom Ventilation, Kitchen Hoods - Image 3](https://m.media-amazon.com/images/I/71+mCMB1RAL.jpg)
![Repa Market 5" to 4" Inch Duct Reducer/Increaser – Galvanized Steel Vent Pipe Adapter HVAC & Dryer Vent Systems – Round Metal Coupling Connector for Exhaust Fans, Bathroom Ventilation, Kitchen Hoods - Image 4](https://m.media-amazon.com/images/I/71ZVmvZ9MfL.jpg)
![Repa Market 5" to 4" Inch Duct Reducer/Increaser – Galvanized Steel Vent Pipe Adapter HVAC & Dryer Vent Systems – Round Metal Coupling Connector for Exhaust Fans, Bathroom Ventilation, Kitchen Hoods - Image 5](https://m.media-amazon.com/images/I/71dAZkRu04L.jpg)

## Available Options

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

## Frequently Bought Together

- 5" to 4" Inch Duct Reducer Round Fitting Pipe Increaser Made from Galvanized Steel (Drain, Waste and Vent) Reducing Coupling (Metal)
- 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
- 5 Inch Duct 5 Feet, Hon&Guan Flexible Dryer Vent Hose For Tight Space Dryer Exhaust Hose Aluminum Duct For Heating and Cooling Ventilation-with 2 Clamps

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**Shop now:** [https://www.desertcart.kr/products/242042704-repa-market-5-to-4-inch-duct-reducer-increaser-galvanized](https://www.desertcart.kr/products/242042704-repa-market-5-to-4-inch-duct-reducer-increaser-galvanized)

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*Product available on Desertcart South Korea*
*Store origin: KR*
*Last updated: 2026-02-23*