---
product_id: 316527190
title: "4\" to 3\" Inch / 100 to 80 mm Round Galvanized Steel Duct Reducer - Duct Fitting - Pipe Increaser Reducer - Metal Tube Reducing Coupling for Drain, Waste and Ventilation (4 to 3 Inch)"
brand: "repa market"
price: "₨613"
currency: SCR
in_stock: true
url: https://www.desertcart.sc/products/316527190-4-to-3-inch-100-to-80-mm-round-galvanized
store_origin: SC
region: Seychelles
---

# Fits 4" to 3" (100 to 80 mm) ducts perfectly Versatile reducer/increaser for HVAC & more Galvanized steel for ultimate durability 4" to 3" Inch / 100 to 80 mm Round Galvanized Steel Duct Reducer - Duct Fitting - Pipe Increaser Reducer - Metal Tube Reducing Coupling for Drain, Waste and Ventilation (4 to 3 Inch)

**Brand:** repa market
**Price:** ₨613
**Availability:** ✅ In Stock

## Summary

> 🔧 Upgrade your airflow game with the ultimate duct reducer!

## Quick Answers

- **What is this?** 4" to 3" Inch / 100 to 80 mm Round Galvanized Steel Duct Reducer - Duct Fitting - Pipe Increaser Reducer - Metal Tube Reducing Coupling for Drain, Waste and Ventilation (4 to 3 Inch) by repa market
- **How much does it cost?** ₨613 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.sc](https://www.desertcart.sc/products/316527190-4-to-3-inch-100-to-80-mm-round-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

- • **Universal HVAC Compatibility:** Ideal for bathroom fans, tumble dryers, cooker hoods, hydroponics, and commercial ventilation systems.
- • **DIY & Trade Ready Installation:** Lightweight yet sturdy 100g design makes setup quick and hassle-free for professionals and enthusiasts alike.
- • **Precision Fit for Seamless Airflow:** Designed to connect 4" (100 mm) to 3" (80 mm) ducts flawlessly, eliminating leaks and inefficiencies.
- • **Built to Last with Galvanized Steel:** Robust corrosion-resistant metal ensures long-term reliability in any environment.
- • **Optimize Your Air Quality & Efficiency:** Perfect for upgrading or repairing duct systems to enhance airflow and reduce energy waste.

## Overview

This 4" to 3" galvanized steel duct reducer is a durable, corrosion-resistant fitting designed to connect round ducts of 100 mm to 80 mm diameter. Lightweight and easy to install, it’s perfect for HVAC systems, extractor fans, and ventilation setups in both residential and commercial spaces, ensuring efficient airflow and system compatibility.

## Description

4" to 3" Inch / 100 to 80 mm Round Galvanized Steel Duct Reducer - Duct Fitting - Pipe Increaser Reducer - Metal Tube Reducing Coupling for Drain, Waste and Ventilation (4 to 3 Inch)

## Features

- Galvanized Steel 100 mm Male to 80 mm Male Round Ducting Adaptor / 4" (3.93") to 3" (3.15")
- 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 |
|---------------|-------|
| Manufacturer | Repa Market |
| Product Dimensions | 10.3 x 9.7 x 10.3 cm; 100 g |
| Item model number | [Repa Market model number not specified] |
| Size | 3 to 4 Inch / 80 to 100 mm |
| Colour | Silver |
| Style | Reducer/Increaser |
| Finish | Galvanized Steel |
| Material | Metal |
| Shape | Circular |
| Item Package Quantity | 1 |
| Number of Pieces | 1 |
| Special Features | Easy to Install |
| Usage | Commercial/Residential |
| Included Components | Galvanized Steel Duct Reducer |
| Batteries included? | No |
| Batteries Required? | No |
| Item Weight | 100 g |

## Product Details

- **Size:** 3 to 4 Inch / 80 to 100 mm
- **Material:** Metal
- **Brand:** Repa Market
- **Colour:** Silver
- **Item dimensions L x W x H:** 10.3 x 9.7 x 10.3 centimetres
- **Connector type:** Adapter
- **Thread size:** 100 mm
- **Exterior finish:** Alloy Steel
- **Thread type:** NPT
- **Number of pieces:** 1

## Images

![4" to 3" Inch / 100 to 80 mm Round Galvanized Steel Duct Reducer - Duct Fitting - Pipe Increaser Reducer - Metal Tube Reducing Coupling for Drain, Waste and Ventilation (4 to 3 Inch) - Image 1](https://m.media-amazon.com/images/I/81xBqb6DV4L.jpg)

## Available Options

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

## Frequently Bought Together

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**Shop now:** [https://www.desertcart.sc/products/316527190-4-to-3-inch-100-to-80-mm-round-galvanized](https://www.desertcart.sc/products/316527190-4-to-3-inch-100-to-80-mm-round-galvanized)

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*Product available on Desertcart Seychelles*
*Store origin: SC*
*Last updated: 2026-03-13*