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Kair Ducting Reducer 150mm to 100mm / 6 to 4 Inch Duct Pipe Reduction Connector

Pros

  • Simple way to join mismatched duct sizes without new ducting
  • Rigid plastic construction holds its shape over time
  • Very high review count reflects reliable fit and finish

Cons

  • Connector only, no ducting or clamps included

Specifications

Material
Plastic
Price tier
Budget
Size
150mm to 100mm

How it compares in Ventilation & Ducting

We list 17 ventilation & ducting products, priced from £6.35 to £28.71. At £8.99 this one is the 6th cheapest of them 11 cost more. The average across the subcategory is £13.30 and the midpoint is £10.38, so it lands £4.31 below the average.

Its 4.5-star score sits level with the ventilation & ducting average of 4.47, with 6 of the 17 rated higher. Its 2,621 Amazon reviews make it the 4th most-reviewed here, against a subcategory average of 1,588.

Price position in Ventilation & Ducting

Cheapest £6.35This one £8.99Dearest £28.71

Splitting the subcategory into three price bands puts this product in the Budget band (£7.99£9.54), which holds 6 of 17 products and averages £8.71 at 4.48 stars.

Average price and rating of each price band in Ventilation & Ducting
BandRangeProductsAverage priceAverage rating
BudgetThis one£7.99£9.546£8.714.48
Mid-range£9.99£14.656£11.934.42
Premium£17.42£28.915£23.054.52

About this product

This Kair Single Channel Pipe Reducer offers a straightforward solution for adapting ducting systems in DIY projects or trade applications. Manufactured here in the UK by Ventilation, this connector is designed to seamlessly join different sized round ducts – specifically, a 150mm female connection to a 100mm male connection. It’s constructed from high-quality white polystyrene/polypropylene plastic and is suitable for use with tumble dryers, extractor fans, cooker hoods, or any in-line ventilation system where you need to change the duct size.

The reducer provides a simple way to overcome mismatched ducting sizes without needing to purchase entirely new lengths of pipe. The rigid plastic construction ensures that it will hold its shape over time, providing a durable and reliable connection. It’s designed for both DIY enthusiasts and professional tradespeople looking for an efficient upgrade or modification to their ventilation systems.

Important to note is that this connector only provides the reduction itself; clamps and ducting are not included. You'll need to ensure you have compatible ducting, such as round 125mm (DUCVKC267) or 127mm flexible ducting (DUCP0092/127/35), for your specific application. It’s also worth considering that this connector fits over Kair 152mm Flexible Hose (DUCP0092/152/35) and the 150mm ducting pipe (DUCVKC670).

The dimensions of the reducer are 15 x 15 x 6 centimetres, with a thread type of metric tapered. It’s supplied as a single unit, part number Sys-150, and is made from ABS plastic.

Related attributes

FAQ

What is this Kair ducting reducer best suited for?

This reducer is designed to simplify the joining of different sized ducting systems, particularly in DIY ventilation projects. It’s commonly used with applications like extractor fans, cooker hoods, and dryer vents where a connection between larger and smaller ducts is required.

What materials is it made from?

The reducer is constructed from a durable plastic material, offering good resistance to common household environments. It’s comprised of a polystyrene/polypropylene blend, chosen for its ability to maintain shape and provide a robust connection.

What are the dimensions of the connector?

The item measures 15 x 15 x 6 centimetres. This size allows it to be easily incorporated into various ventilation setups without taking up excessive space within the installation area.

Does this product include any accessories like ducting or clamps?

This connector is a standalone component; it doesn’t include any accompanying ducting pipes or clamping mechanisms. It's intended for use with existing ducting systems of compatible sizes.

What thread type does the reducer utilize?

The reducer features a metric tapered thread, designed to provide a secure and reliable connection when used with appropriately threaded ducting pipes. This ensures a tight seal for optimal airflow.

How does this compare in price to similar products?

Positioned within the budget price tier, this Kair reducer offers good value for its function. It’s generally comparable to other basic plastic ducting connectors available on the market, providing a cost-effective solution for joining ducts.

What is the temperature range that this connector can withstand?

The reducer’s construction allows it to operate effectively within a broad temperature range. It's suitable for use in environments where temperatures may fluctuate, ranging from cooler conditions to moderately warm settings.

Is there anything I need to consider regarding its maintenance?

Due to the plastic construction, occasional visual inspection is recommended. Cleaning can be achieved with a soft, dry cloth to remove dust and debris, ensuring optimal airflow performance.

What are some of the key benefits highlighted for this product?

A primary benefit is its simple design allowing users to connect mismatched duct sizes without needing new sections. The rigid plastic construction maintains its shape over time, and a high number of positive reviews indicates reliable fit and finish.

What size ducts does this connector accommodate?

The reducer connects a 150mm diameter female fitting with a 100mm diameter male fitting. It’s compatible with round ducting pipes of these dimensions, as well as offering adaptability to other sizes within the specified range.