






🔧 Upgrade your airflow with precision and style!
The Kair Ducting Reducer 150mm to 125mm is a lightweight, durable ABS plastic connector designed to seamlessly reduce duct pipe sizes from 6 to 5 inches. Compatible with Kair’s SYS-125 & SYS-150 systems, it ensures a perfect fit for ventilation units including extractor fans, tumble dryers, and kitchen hoods. With over 2,500 positive reviews and a top 10 rank in ducting, it’s the trusted choice for professional-grade airflow solutions.








| ASIN | B004X4SXBM |
| Best Sellers Rank | 5,095 in DIY & Tools ( See Top 100 in DIY & Tools ) 10 in Ducting |
| Brand | Kair |
| Colour | White |
| Connector Type | Coupling, Reducer |
| Connector type | Coupling , Reducer |
| Country of Origin | United Kingdom |
| Customer Reviews | 4.5 out of 5 stars 2,598 Reviews |
| Item Dimensions | 15.5 x 15.5 x 6 centimetres |
| Item Weight | 41 g |
| Item dimensions L x W x H | 15.5 x 15.5 x 6 centimetres |
| Manufacturer | Kair |
| Material | ABS Plastic |
| Number of Pieces | 1 |
| Size | 150mm to 125mm |
| Thread Size | 150mm, 125mm |
| Thread Type | UN |
R**1
Good
Works great. I wanted to extend the exhaust tube from my tumble dryer. You’ll need an additional clip to fit. Fits the tube perfectly. Quality product.
A**R
Brilliant fit
Quality products fitted perfectly reducing 6” kitchen extractor to 5” vent pipe. Price and delivery very good what’s not to like and why it’s not rated higher is beyond me .
A**R
Does not fit a 100mm outer pipe but good quality
Crazy I know but I had a tumble dryer with an outlet of 100 mm and the smaller dryer needed to be 80mm so I ordered this to do the job trouble is it fitted the 80mm new dryer but obviously the 100 mm outer duct was 100mm so it didn’t fit we had to get a piece of plastic bigger and tape it up! My fault but it was good quality plastic
L**S
Good product
Did the job and good quality
B**S
Good quality product
Very compact and good quality. Fits snug just as it should so confirms that the product was quality due to being true to size.
F**D
Overpriced for what it is.
Not cheap for a piece of plastic. But does the job.
G**.
excellent & great value
excellent & great value
S**.
The best reducer I've ever seen
Fits perfectly
Trustpilot
4 days ago
3 weeks ago