---
product_id: 11057622
title: "5\" X 4\" Duct Reducer & Increaser Non-Crimped Single Wall Galvanized Sheet Metal ducting Connector for Airflow, Heating, Cooling, & air Ventilation Systems Fittings"
brand: "the sheet metal kid"
price: "€ 41.41"
currency: EUR
in_stock: true
reviews_count: 8
url: https://www.desertcart.nl/products/11057622-5-x-4-duct-reducer-and-increaser-non-crimped-single
store_origin: NL
region: Netherlands
---

# Seamless airflow 5" x 4" size Galvanized steel 5" X 4" Duct Reducer & Increaser Non-Crimped Single Wall Galvanized Sheet Metal ducting Connector for Airflow, Heating, Cooling, & air Ventilation Systems Fittings

**Brand:** the sheet metal kid
**Price:** € 41.41
**Availability:** ✅ In Stock

## Summary

> 🔗 Connect & Conquer Your Airflow Needs!

## Quick Answers

- **What is this?** 5" X 4" Duct Reducer & Increaser Non-Crimped Single Wall Galvanized Sheet Metal ducting Connector for Airflow, Heating, Cooling, & air Ventilation Systems Fittings by the sheet metal kid
- **How much does it cost?** € 41.41 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.nl](https://www.desertcart.nl/products/11057622-5-x-4-duct-reducer-and-increaser-non-crimped-single)

## Best For

- the sheet metal kid enthusiasts

## Why This Product

- Trusted the sheet metal kid brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Built to Last:** Crafted from high-quality galvanized steel for durability.
- • **Transform Your Ducting:** Seamlessly connect different duct sizes for optimal airflow.
- • **Effortless Installation:** Quickly install with common tools and materials.
- • **Satisfaction Guaranteed:** 100% customer satisfaction or your money back!
- • **Versatile Compatibility:** Works with both flexible and rigid duct systems.

## Overview

The 5" x 4" Duct Reducer & Increaser is a robust, non-crimped galvanized sheet metal connector designed for seamless integration of HVAC duct systems. Ideal for both DIY enthusiasts and professionals, it ensures maximum efficiency in airflow management while being easy to install and compatible with various duct types.

## Description

5" X 4" Duct Reducer & Increaser Non-Crimped Single Wall Galvanized Sheet Metal ducting Connector for Airflow, Heating, Cooling, & air Ventilation Systems Fittings

## Features

- ✅ 𝐃𝐔𝐂𝐓 𝐑𝐄𝐃𝐔𝐂𝐄𝐑 & 𝐈𝐍𝐂𝐑𝐄𝐀𝐒𝐄𝐑: Sheet metal HVAC Duct Reducer for flexible or metal HVAC Ducts and air vents. Used to connect two air ducts of different diameters to create a seamless ventilation system duct. Sturdy steel ducting is perfect for DIY and Trade use. This is a very practical duct, all in one, solid duct which can be used when connecting two different, solid or flexible ducts or ducts to ventilators, or vice versa, from small to large, larger too small.
- ✅ 𝐇𝐈𝐆𝐇-𝐐𝐔𝐀𝐋𝐈𝐓𝐘 𝐌𝐄𝐓𝐀𝐋 𝐒𝐇𝐄𝐄𝐓: Our sheet metal reducers and increasers are manufactured from the highest quality of galvanized steel. Perfect for use with either flexible duct or rigid sheet metal duct. Never be restricted to your air conditioner's ducting requirements again. Once it's in position can be sealed with duct sealer.
- ✅ 𝐄𝐗𝐓𝐑𝐀 𝐒𝐓𝐑𝐄𝐍𝐆𝐓𝐇 𝐀𝐍𝐃 𝐅𝐈𝐓𝐓𝐈𝐍𝐆𝐒: These galvanized duct reducers can be used with fans, ducting, air-cooled hoods, and ventilation systems, that allowing you to lengthen and extend your ducting. This duct is crimped on the small end of the duct to fit inside the next ducting section. They are the perfect sheet metal fitting for changing duct sizes and utilized for maintaining the best airflow for maximum efficiency in your HVAC duct system.
- ✅ 𝐄𝐀𝐒𝐘 𝐓𝐎 𝐈𝐍𝐒𝐓𝐀𝐋𝐋: Consider these reducers as a patch between your current unit and the ducting you want to run and see how easy it is to match up the two. They are the perfect sheet metal fitting for changing duct sizes and utilized for maintaining the best airflow for maximum efficiency in your HVAC duct system. Perfect for use with either flexible duct or rigid sheet metal duct. The connection can be fastened by using montage glue, tape, or steel clips.
- ✅ 𝟏𝟎𝟎% 𝐆𝐔𝐀𝐑𝐀𝐍𝐓𝐄𝐄 𝐒𝐀𝐓𝐈𝐒𝐅𝐀𝐂𝐓𝐈𝐎𝐍: We are willing for the satisfaction of our customers because customer satisfaction is our first priority. If you have any kind of problem regarding our product we will fully co-operate in solving your problem. You should never feel any hesitation in contacting us. Do not miss the opportunity, simply click “ADD TO CART” to order yours today!

## Images

![5" X 4" Duct Reducer & Increaser Non-Crimped Single Wall Galvanized Sheet Metal ducting Connector for Airflow, Heating, Cooling, & air Ventilation Systems Fittings - Image 1](https://m.media-amazon.com/images/I/71YUeyuXynL.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ 5.0 out of 5 stars







  
  
    Perfect for releasing hot air
  

*by D***K on Reviewed in the United States on February 24, 2023*

I got this duct to give a way for hot air to escape from my water heater. This does a perfect job and is galvanized,  so leaving it outside is no problem whatsoever. It has held up great so far and I have no complaints.

### ⭐⭐⭐⭐ 4.0 out of 5 stars







  
  
    Perfect reducer and good quality... 4" to 5" or 5" to 4" your choice...
  

*by S***E on Reviewed in the United States on April 23, 2018*

Perfect reduction fitting, fits well, good weight/thickness of metal.  5" to a 4" or 4" to a 5" either way this one works well.NOTE: If you appreciated this review please give it a “thumbs up/like” your helping me to continue to give honest/unbiased insight into products I’ve used and you may have questions about. Interested in a product but don't know enough about it and would like it reviewed? Please let me know and I'll see what I can do... Thank you 🙏

### ⭐⭐⭐⭐⭐ 5.0 out of 5 stars







  
  
    Worked like a charm and used a 10' 4" powertec dust ...
  

*by G***M on Reviewed in the United States on January 15, 2016*

Worked extremely well to connect my Delta 14" bandsaw dust port to a vacuum attachment.  Had the typical problem where the port on my bandsaw was 5" and couldn't figure out how to hook it up.  Went with one of these and had to pop the outermost rivet to get it to fit over the 5" output as they are the same size and then sealed it up with Foil Duct tape.  Worked like a charm and used a 10' 4" powertec dust collection hose (http://www.amazon.com/gp/product/B005VRVGUA?psc=1&redirect=true&ref_=oh_aui_detailpage_o03_s02) with a 4" to 2.5" reducer (http://www.amazon.com/gp/product/B0000223YJ?psc=1&redirect=true&ref_=oh_aui_detailpage_o03_s03) to connect it to my shop vac.  Works great and helps keep the project dust down as I don't have a central dust collection system setup.

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**Shop now:** [https://www.desertcart.nl/products/11057622-5-x-4-duct-reducer-and-increaser-non-crimped-single](https://www.desertcart.nl/products/11057622-5-x-4-duct-reducer-and-increaser-non-crimped-single)

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*Product available on Desertcart Netherlands*
*Store origin: NL*
*Last updated: 2026-02-10*