---
product_id: 412908604
title: "Kair Ducting Reducer 150mm to 125mm - 6 to 5 inch Duct Pipe Reduction Connector for Extract Fans and Ventilation Units"
brand: "kair"
price: "¥6658"
currency: JPY
in_stock: true
reviews_count: 5
category: "Kair"
url: https://www.desertcart.jp/products/412908604-kair-ducting-reducer-150mm-to-125mm-6-to-5-inch
store_origin: JP
region: Japan
---

# 150mm to 125mm precision fit ABS plastic durable build Operates -15°C to +60°C Kair Ducting Reducer 150mm to 125mm - 6 to 5 inch Duct Pipe Reduction Connector for Extract Fans and Ventilation Units

**Brand:** kair
**Price:** ¥6658
**Availability:** ✅ In Stock

## Summary

> 🔧 Upgrade your airflow game with precision and durability!

## 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?** ¥6658 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.jp](https://www.desertcart.jp/products/412908604-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

- • **Temperature Resilient:** Reliable operation from freezing -15°C to warm +60°C environments without warping.
- • **Multi-Application Ready:** Ideal for tumble dryers, extractor fans, hydroponics, HVAC, and kitchen ventilation.
- • **Robust ABS Construction:** Lightweight yet tough plastic ensures long-lasting performance under varied conditions.
- • **Universal Compatibility:** Works flawlessly with Kair SYS-125 & SYS-150 ranges plus most rigid and flexible ducts.
- • **Seamless Size Transition:** Effortlessly adapts 6-inch to 5-inch ducting for versatile ventilation 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 rigid and flexible ventilation systems. Designed for domestic and professional use, it supports temperatures from -15°C to +60°C, making it perfect for extractor fans, tumble dryers, HVAC, and more.

## Description

Kair Ducting Reducer 150mm to 125mm - 6 to 5 inch 150mm / 6 inch Side 150mm female spigot (the same diameter as rigid 150mm ducting pipe). Male fittings such as connectors, bends, and grilles will fit straight in to the socket. If you wish to connect this to Kair 150mm Straight Pipe Part: DUCVKC650 you will require a male connector / coupling Part: DUCVKC365. Kair 152mm Flexible Hose Part: DUCP0092/152/35 will fit over the socket and requires tape or either a metal hose clip or a quick release worm drive clip to seal. 125mm / 5 inch Side 125mm ducting end is male and will fit inside Kair 125mm straight ducting Part: DUCVKC267 without the need for a connector. Suitable for use with domestic ventilation systems. Can be used with rigid plastic ducting systems - seal with mastic or tape Can be used with flexible ducting systems with use of metal hose clips Max / Min Temperature: +60c / -15c. Kair plastic rigid ducting is perfect for DIY and trade use. Perfectly suited for ducting your Tumble Dryer, Bathroom or Kitchen extractor fan, Hydroponics, In-Line Extract Fans, or Cooker Hood. This reducer can be used as a part of a long ductwork run for a variety of purposes including whole house ventilation, passive stack vent, positive input, air conditioning, HVAC, and Heat Recovery Systems.

Review: Perfect item - Does the job
Review: perfetto e funzionale - il riduttore è un pezzo molto semplice ma trovarlo in giro diventa complicato i negozi non lo tengono e tanto meno le ferramente, qui è diventato tutto semplice e si adatta perfettamente ai tubi da ridurre

## 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 | #71,635 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #116 in Heating & Cooling Ducting Products |
| Brand | Kair |
| Brand Name | Kair |
| Color | White |
| Colour | White |
| Connector Type | Reducer |
| Connector type | Reducer |
| Customer Reviews | 4.5 out of 5 stars 2,542 Reviews |
| Item Dimensions | 15.5 x 15.5 x 6 centimeters |
| Item Weight | 0.09 Pounds |
| Item dimensions L x W x H | 15.5 x 15.5 x 6 centimeters |
| Manufacturer | Kair |
| Manufacturer Part Number | DUCVKC619 |
| Material | ABS Plastic |
| Material Type | ABS Plastic |
| Number of Pieces | 1 |
| Size | 150mm to 125mm (6 to 5 inch) |
| Thread Size | 150mm, 125mm |
| Thread Type | UN |
| Unit Count | 1.0 Count |

## Product Details

- **Brand:** Kair
- **Colour:** White
- **Item dimensions L x W x H:** 15.5 x 15.5 x 6 centimeters
- **Material:** ABS Plastic
- **Size:** 150mm to 125mm (6 to 5 inch)

## 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** options.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Perfect item
*by A***R on 4 July 2026*

Does the job

### ⭐⭐⭐⭐⭐ perfetto e funzionale
*by B***O on 10 May 2016*

il riduttore è un pezzo molto semplice ma trovarlo in giro diventa complicato i negozi non lo tengono e tanto meno le ferramente, qui è diventato tutto semplice e si adatta perfettamente ai tubi da ridurre

### ⭐⭐⭐⭐⭐ La disponibilité
*by D***A on 12 June 2018*

On avait pas ce produit en quincaillerie. J avais acheté une hotte et oh non!! Les normes ont changées. La solution était de repercer un mur de 1.5 m en briques ( des heures de travail😣) au dernier moment j ai penser à Amazon et 8.00€ et 1 jour plus tard ma hotte est poser et en état de fonctionnement.😥

## 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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**Shop now:** [https://www.desertcart.jp/products/412908604-kair-ducting-reducer-150mm-to-125mm-6-to-5-inch](https://www.desertcart.jp/products/412908604-kair-ducting-reducer-150mm-to-125mm-6-to-5-inch)

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*Product available on Desertcart Japan*
*Store origin: JP*
*Last updated: 2026-10-29*