---
product_id: 51940328
title: "Kair 150mm to 125mm Round Duct Reducer"
brand: "kair"
price: "₨442"
currency: SCR
in_stock: true
category: "Kair"
url: https://www.desertcart.sc/products/51940328-kair-150mm-to-125mm-round-duct-reducer
store_origin: SC
region: Seychelles
---

# 150mm to 125mm precision fit Dual spigot design for versatile connection Durable ABS plastic build Kair 150mm to 125mm Round Duct Reducer

**Brand:** kair
**Price:** ₨442
**Availability:** ✅ In Stock

## Summary

> 🔧 Upgrade your airflow game with precision and ease!

## Quick Answers

- **What is this?** Kair 150mm to 125mm Round Duct Reducer by kair
- **How much does it cost?** ₨442 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/51940328-kair-150mm-to-125mm-round-duct-reducer)

## 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

- • **Robust & Lightweight:** Crafted from sturdy ABS plastic weighing just 41g for easy handling and installation.
- • **Multi-Application Ready:** Ideal for tumble dryers, extractor fans, hydroponics, and kitchen ventilation setups.
- • **Universal Compatibility:** Works flawlessly with Kair SYS-125 & SYS-150 ranges plus standard ducting.
- • **Hassle-Free Installation:** Female 150mm spigot fits over bends; male 125mm spigot inserts into straight or flexible ducts.
- • **Seamless Size Transition:** Effortlessly adapts 150mm ducts to 125mm systems for perfect airflow.

## Overview

The Kair 150mm to 125mm Round Duct Reducer is a lightweight, durable ABS plastic adaptor designed to connect 150mm ducting to 125mm systems. Featuring a female 150mm spigot and a male 125mm spigot, it ensures seamless compatibility with Kair’s extensive SYS-125 & SYS-150 ranges and standard ducting. Perfect for enhancing ventilation in dryers, extractor fans, hydroponics, and kitchen setups, it offers easy installation and reliable performance.

## Description

Free delivery and returns on all eligible orders. Shop Kair 150mm to 125mm Round Duct Reducer | Fits over fittings (bends etc), For dryer vents and cooker hoods and extractor fans, Suitable for grow tents and hydroponics.

## 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 |
|---------------|-------|
| ASIN | B004X4SXBM |
| Best Sellers Rank | 3,662 in DIY & Tools ( See Top 100 in DIY & Tools ) 5 in Ducting |
| Brand | Kair |
| Colour | White |
| Connector Type | Coupling, Reducer |
| Country of Origin | United Kingdom |
| Customer Reviews | 4.5 4.5 out of 5 stars (2,633) |
| Item Dimensions | 15.5 x 15.5 x 6 centimetres |
| Item Highlight | Fits over fittings (bends etc), For dryer vents and cooker hoods and extractor fans, Suitable for grow tents and hydroponics |
| Item Weight | 41 g |
| Manufacturer | Kair |
| Material | ABS Plastic |
| Number of Packs | 1 |
| Number of Pieces | 1 |
| Part Number | DUCVKC619 |
| Size | 150mm to 125mm |
| Thread Size | 150mm, 125mm |
| Thread Type | UN |
| Unit Count | 1.0 count |

## Product Details

- **Brand:** Kair
- **Colour:** White
- **Connector type:** Coupling, Reducer
- **Item dimensions L x W x H:** 15.5 x 15.5 x 6 centimetres
- **Item weight:** 41 g
- **Material:** ABS Plastic
- **Number of pieces:** 1
- **Size:** 150mm to 125mm
- **Thread size:** 150mm, 125mm
- **Thread type:** UN

## Images

![Kair 150mm to 125mm Round Duct Reducer - Image 1](https://m.media-amazon.com/images/I/417xz6wvZyL.jpg)
![Kair 150mm to 125mm Round Duct Reducer - Image 2](https://m.media-amazon.com/images/I/31Zrv9ymG1L.jpg)
![Kair 150mm to 125mm Round Duct Reducer - Image 3](https://m.media-amazon.com/images/I/41Qe-TgOflL.jpg)
![Kair 150mm to 125mm Round Duct Reducer - Image 4](https://m.media-amazon.com/images/I/41Zjxd3rDqL.jpg)
![Kair 150mm to 125mm Round Duct Reducer - Image 5](https://m.media-amazon.com/images/I/41oqp-XZXVL.jpg)

## Available Options

This product comes in different **Size** 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 Seychelles*
*Store origin: SC*
*Last updated: 2026-09-20*