---
product_id: 51940328
title: "Kair Ducting Reducer 150mm to 125mm - 6 to 5 inch Duct Pipe Reduction Connector for Extract Fans and Ventilation Units"
brand: "kair"
price: "$34"
currency: NZD
in_stock: true
url: https://www.desertcart.nz/products/51940328-kair-ducting-reducer-150mm-to-125mm-6-to-5-inch
store_origin: NZ
region: New Zealand
---

# 150mm to 125mm precision fit Universal duct compatibility ABS plastic durable build Kair Ducting Reducer 150mm to 125mm - 6 to 5 inch Duct Pipe Reduction Connector for Extract Fans and Ventilation Units

**Brand:** kair
**Price:** $34
**Availability:** ✅ In Stock

## Summary

> 🔧 Upgrade your airflow game with precision and style!

## Quick Answers

- **What is this?** Kair Ducting Reducer 150mm to 125mm - 6 to 5 inch Duct Pipe Reduction Connector for Extract Fans and Ventilation Units by kair
- **How much does it cost?** $34 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.nz](https://www.desertcart.nz/products/51940328-kair-ducting-reducer-150mm-to-125mm-6-to-5-inch)

## Best For

- kair enthusiasts

## Why This Product

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

## Key Features

- • **Compact & Lightweight:** Easy to install with minimal space impact, weighing just 40.8 grams.
- • **Robust ABS Construction:** Lightweight yet tough material ensures long-lasting ventilation performance.
- • **Universal Compatibility:** Works flawlessly with Kair SYS-125 & SYS-150 systems plus standard ducting.
- • **Seamless Size Transition:** Effortlessly adapts 6-inch to 5-inch ducting for perfect airflow.
- • **Versatile Ventilation Solution:** Ideal for extractor fans, tumble dryers, kitchen hoods, and hydroponics setups.

## Overview

The Kair Ducting Reducer efficiently converts 150mm (6 inch) ducting to 125mm (5 inch) with a durable ABS plastic build. Compatible with a wide range of ventilation systems including Kair SYS-125 & SYS-150, it’s perfect for enhancing airflow in extractor fans, kitchen hoods, and more, all while being lightweight and easy to install.

## Description

Kair Ducting Reducer 150mm to 125mm - 6 to 5 inch Duct Pipe Reduction Connector for Extract Fans and Ventilation Units

## Features

- Adaptor to convert between 150mm and 125mm ducting - 6 to 5 inch.
- On one side there is a 150mm (6 inch) female spigot. Will fit over male fittings (bends etc). Requires additional 150mm connector to connect round 150mm pipe.
- On the other side there is a 125mm (5 inch) male spigot. Will fit into 125mm straight ducting or 127mm flexible ducting.
- Compatible with 125mm and 150mm ducting systems including the extensive Kair SYS-125 & SYS-150 range of fittings, outlets, and grilles.
- Perfectly suited for ducting your Tumble Dryer, Bathroom or Kitchen extractor fan, Hydroponics, In-Line Fans, or Cooker Hoods and other ventilation applications.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Manufacturer | Kair |
| Part Number | DUCVKC619 |
| Product Dimensions | 15.49 x 15.49 x 5.99 cm; 40.82 g |
| Manufacturer reference | DUCVKC619 |
| Size | 150mm to 125mm |
| Colour | White |
| Material | ABS Plastic |
| Number of Pieces | 1 |
| Batteries included? | No |
| Batteries Required? | No |
| Item Weight | 40.8 g |

## Product Details

- **Size:** 150mm to 125mm
- **Material:** ABS Plastic
- **Brand:** Kair
- **Colour:** White
- **Item dimensions L x W x H:** 15.5 x 15.5 x 6 centimetres
- **Connector type:** Coupling, Reducer
- **Thread size:** 150mm, 125mm
- **Thread type:** UN
- **Item weight:** 0.09 Pounds
- **Number of pieces:** 1

## Images

![Kair Ducting Reducer 150mm to 125mm - 6 to 5 inch Duct Pipe Reduction Connector for Extract Fans and Ventilation Units - Image 1](https://m.media-amazon.com/images/I/417xz6wvZyL.jpg)
![Kair Ducting Reducer 150mm to 125mm - 6 to 5 inch Duct Pipe Reduction Connector for Extract Fans and Ventilation Units - Image 2](https://m.media-amazon.com/images/I/61L8yZwVyxL.jpg)
![Kair Ducting Reducer 150mm to 125mm - 6 to 5 inch Duct Pipe Reduction Connector for Extract Fans and Ventilation Units - Image 3](https://m.media-amazon.com/images/I/51fDNXbE8lL.jpg)
![Kair Ducting Reducer 150mm to 125mm - 6 to 5 inch Duct Pipe Reduction Connector for Extract Fans and Ventilation Units - Image 4](https://m.media-amazon.com/images/I/51RugVmfzFL.jpg)
![Kair Ducting Reducer 150mm to 125mm - 6 to 5 inch Duct Pipe Reduction Connector for Extract Fans and Ventilation Units - Image 5](https://m.media-amazon.com/images/I/71ImahiDgNL.jpg)

## Available Options

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

## Questions & Answers

**Q: Can you tell me the length please?**
A: The length / height is 70mm

**Q: how do i stick this to my air con? its 125mm connector on the air con but the window and pipe is 150mm and threaded, but cant find a threaded version!**
A: I don’t see anything in the Kair range that solves your problem. The 150 -125mm reducer is just slip-on and it worked fine in my situation. Does the Air-con manufacturer have a fixing to take you from thread to smooth or technical department you can approach for advice? If all else fails You could try to make a connector from flexible hose and fasten with glue and large jubilee clips. Sorry I can’t be more help.

**Q: How is this fixed to the other pipe? Does it need a jubilee clip and if so, is it sufficent to fix it in place?**
A: This is more designed to reduce the size of the fitting on a fan and isn't designed to put two pipes together.

 With that in mind, to make it work for that, both of your pipes would need to be an adequate size to fit over both sizes of the reducer and a jubilee clip would suffice to hold it in place.

**Q: My bathroom extractor fan is 100mm but the ducting is 110mm. This reducer seems to be the ideal solution to remove the gap - is it?**
A: It is, although this is designed to fit ducting so you may need a short sleeve of 100mm ducting between the reducer and your fan.

## Frequently Bought Together

- Kair Ducting Reducer 150mm to 125mm - 6 to 5 inch Duct Pipe Reduction Connector for Extract Fans and Ventilation Units
- Kair PVC Flexible Hose 125mm - 5 inch Universal Tumble Drier, Cooker Hood, Extractor Fan, Air Conditioner Hose - 3 Metre Length
- 125mm Pack of 2 Adjustable 120-140mm Stainless Steel Pipe Clamp Secure Hose Clip Inline Duct Extractor Fan Cooker Hood

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*Product available on Desertcart New Zealand*
*Store origin: NZ*
*Last updated: 2026-01-26*