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Kair Ducting Reducer 150mm to 100mm - 6 to 4 inch Duct Pipe Reduction Connector

4.6 / 5 (54 Reviews)
Product questions? (5) Questions | Ask Question
List Price: 5.83
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2.32 Ex. Vat
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Currently selected product: 150mm - 100mm
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Model: DUCVKC437 Quick Search: QS4256
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  • Kair 150mm female to 100mm male round ducting adaptor.
  • 150mm ducting end is female (the same diameter as rigid 150mm ducting pipe)
  • Requires a System 150 connector to connect to 150mm round pipe
  • 100mm ducting end is male and will fit into 100mm straight ducting
  • Depth (from end to end): 60mm

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KAIR STRAIGHT 150MM TO 100MM ROUND DUCTING REDUCER / ADAPTOR

Summary:

Kair 150mm female to 100mm male round ducting adaptor.

The 150mm ducting end is a female socket (the same diameter as rigid 150mm ducting pipe). Male fittings such as connectors, bends, and grilles will fit straight into the socket.

If you wish to connect this to Kair 150mm Straight Pipe (Part: "DUCVKC650") you will require amale connector/coupling (Part: "DUCVKC365").

Kair152mm Flexible Hose (Part: "DUCP0092/152/35") will fit over and require tape or metal hose clip or quick release worm drive clip to seal

100mm ducting end is male and will fit inside Kair 100mm straight ducting (Part: "DUCVKC250") without the need for a connector.

  • Depth (from end to end): 60mm
  • 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 the use of metal hose clips

Looking for Alternative Sizes?

Here at i-sells.co.uk, we stock a full range of metal and plastic ducting adaptors, reducers, and connectors.

Click here to view the full range of round-to-round reducers

Click here to view the full range of round-to-rectangular straight adaptors

Click here to view the full range of round-to-rectangular elbow adaptors

We also stock a range of metal reducers in sizes from 63mm to 1600mm

Looking for Compatible Ducting?

Click here to view the full range of Kair 100mm Round / 110mm x 54mm Rectangular Ducting Products.

Click here to view the full range of Kair 150mm Round / 180mm x 95mm Rectangular Ducting Products.

Also know as: 150-100MM REDUCER / 150-100mm Ducting Adapter / 150-100mm ducting Adaptor / 100 to 150mm ducting expander / 6" to 4" Ducting Reducer / 6inch to 4inch Adaptor
Product Category Reducers
Round System (mm) 150
Product Type Reducer
Product Group Plastic Ducting
Product Variety 150mm to 100mm (6 to 4 inch)
Length (mm) 150
Width (mm) 150
Height (mm) 60
Diameter - Inner (mm) 96 and 150
Diameter - Outer (mm) 100 and 155
Colour White
Colour - External White
Material ABS Plastic
Weight (Kg) 0.06
Packaged Weight (Kg) 0.06
Packaged Length (mm) 155
Packaged Width (mm) 65
Packaged Height (mm) 155
Temp Max (C) 60
Temp Min (C) -15
Barcode 5060272542108
Manufacturer Product Code DUCVKC437
Polypipe / Domus (similar) 619
Quick Search: QS4256

DUCVKC437 Product Reviews

Rated 4.6/5 based on 54 customer reviews Add Your Review

Date Added: Tuesday 25 June, 2019
5 / 5 stars
It was the only item that fit for my cooker hood. I searched everywhere but found only by i-sells. Product: QS4256
Date Added: Sunday 21 April, 2019
5 / 5 stars
Perfect adaptor from 6 inch to 100mm diameter. Was unable to source from any other supplier at a reasonable price, so purchased from here ! Product: QS4256
Date Added: Tuesday 15 January, 2019
4 / 5 stars
The product is basically as expected. The bigger end is just a little bit loose for the defined size. However, it can be used as intended for my project. Product: QS4256
Date Added: Tuesday 09 October, 2018
5 / 5 stars
************************ Product: QS330
Date Added: Friday 04 May, 2018
5 / 5 stars
Always got what we require. Product: QS4256
Date Added: Monday 30 April, 2018
5 / 5 stars
Just perfect. Product: QS4256
Date Added: Tuesday 26 September, 2017
5 / 5 stars
It was delivered quickly but I ordered it thinking it would adapt he system I have to enable me to use a smaller vent cover but it doesn't so I don't need it really . Product: QS330
Date Added: Friday 21 July, 2017
5 / 5 stars
Perfect. Would be tricky to fit in poor loft lighting conditions or tight spaces, but these need careful preparation. Product: QS330
Date Added: Saturday 27 May, 2017
4 / 5 stars
good delivery on time no hassle at all buy confidently. Product: QS4256
Date Added: Thursday 25 May, 2017
5 / 5 stars
perfect for my requirements, arrived on time, excellent service Product: QS4256
Date Added: Thursday 16 February, 2017
5 / 5 stars
I really should have read the specification more carefully. The 100mm fitting is just that and does need a connector to join with 100mm duct. The email from i-Sells was very polite in pointing this out to me. Otherwise great product, great price, good delivery and above all good service. Product: QS330
Date Added: Monday 19 December, 2016
4 / 5 stars
OK but I chose the wrong size Product: QS354
Date Added: Monday 19 December, 2016
5 / 5 stars
Good, as expeceted Product: QS4256
Date Added: Thursday 15 December, 2016
5 / 5 stars
Good product, good service did the job Product: QS4256
Date Added: Tuesday 13 December, 2016
5 / 5 stars
this reducer is just what we needed. very quick delivery and good product Product: QS330
Date Added: Thursday 01 December, 2016
5 / 5 stars
Excellent, glued to a 110mm pipe so that I could fix my flexible 100mm vent pipe Product: QS3584
Date Added: Sunday 13 November, 2016
5 / 5 stars
Great items, great price & very fast delivery. Items sadly not now needed, returns system was very easy to use Product: QS4255
Date Added: Monday 24 October, 2016
5 / 5 stars
Effective item - does the job. Product: QS4256
Date Added: Saturday 22 October, 2016
5 / 5 stars
excellent - very fast delivery Product: QS330
Date Added: Monday 05 September, 2016
5 / 5 stars
Highly suitable for the purpose Product: QS330
Date Added: Saturday 03 September, 2016
5 / 5 stars
Sizes are accurate. Should work well. I have not had time to fit item. Product: QS330
Date Added: Thursday 01 September, 2016
4 / 5 stars
Sent the wrong sized item initially but quickly rectified the problem and I received the correct item by express delivery the next day. Happy. Product: QS354
Date Added: Friday 26 August, 2016
5 / 5 stars
spot on just the job Product: QS4256
Date Added: Thursday 28 July, 2016
5 / 5 stars
Fitted perfectly to connect ducting Product: QS330
Date Added: Wednesday 01 June, 2016
5 / 5 stars
Excellent quality item. As expected. Product: QS4256
Date Added: Thursday 26 May, 2016
2 / 5 stars
The 150mm is exactly 150mm outside diameter which cannot be mounted on a cooker hood which is also exactly 150mm (German technology). Saw the 150mm edge in 3 places so that it was forced to connect to the hood. If it is an adaptor, should it be slightly bigger so that it can be mounted on any 150mm hoods? Product: QS4256
Date Added: Wednesday 04 May, 2016
5 / 5 stars
Very pleased with the Ducting Reducer. Very prompt delivery and was just what I required. Product: QS4256
Date Added: Thursday 21 April, 2016
4 / 5 stars
no problem with this item Product: QS330
Date Added: Wednesday 23 March, 2016
1 / 5 stars
Had to butt join the 125mm end of the reducer to the 125mm pipe as it is exactly the same diameter! the website should make it clear taht a straight 125mm connector is required to make this joint Reply from i-sells.co.uk

Hello Alan, We apologise that the information we have provided was not clearly displayed. Here is a part of the product description: 1. On one side there is a 125mm female socket. This will fill fit over male fittings (Such as bends, connectors, etc). 2. Rigid round 125mm ducting pipe (Part: "DUCVKC267") will require a male connector / coupling (Part: "DUCVKC355").
Product: QS330
Date Added: Wednesday 23 March, 2016
1 / 5 stars
150 mm end of adapter is exactly same diameter as 150 pipe so had to butt join with duct tape! . The site should make it clear that a 150MM DUCTING SYSTEM - ROUND STRAIGHT CONNECTOR is needed to join the pipe to the reducer Reply from i-sells.co.uk

Hello Alan, We apologise that the information we have provided was not clearly displayed. Here is a part of the product description: 1. The 150mm ducting end is a female socket (the same diameter as rigid 150mm ducting pipe). Male fittings such as connectors, bends, and grilles will fit straight in to the socket. 2. If you wish to connect this to Kair 150mm Straight Pipe (Part: "DUCVKC650") you will require a male connector / coupling (Part: "DUCVKC365").
Product: QS354
Date Added: Monday 07 March, 2016
3 / 5 stars
Not as robust as other ducting and needs a coupler to attach it to pipe! Product: QS354
Date Added: Friday 18 December, 2015
5 / 5 stars
Excellent fit, on pipe and to dospel extracter, great price as well Product: QS4256
Date Added: Tuesday 01 December, 2015
5 / 5 stars
Prompt delivery and good value Product: QS354
Date Added: Saturday 28 November, 2015
5 / 5 stars
Simple product does the job perfect. Just what I needed. Product: QS354
Date Added: Thursday 19 November, 2015
5 / 5 stars
It works fine but had to use hot air gun on the pipe to get it to fit. Product: QS4256
Date Added: Thursday 19 November, 2015
3 / 5 stars
Had to work hard to fit the 150 pipe used hot air gun on pipe to get the reducer to fit, apart from that it works Product: QS354
Date Added: Saturday 14 November, 2015
5 / 5 stars
Did the job fine thank you Product: QS4085
Date Added: Tuesday 27 October, 2015
5 / 5 stars
good quality, swift delivery and cheap prices Product: QS330
Date Added: Sunday 25 October, 2015
5 / 5 stars
super fast delivery, competitive prices, strong plastic would recommend this website great customer service Product: QS330
Date Added: Friday 02 October, 2015
3 / 5 stars
satisfactory good delivery Product: QS330
Date Added: Friday 24 July, 2015
5 / 5 stars
I-sells was able to supply some 'hard to find' fittings in both uPVC and galvanized steel at competitive prices. Delivery was prompt and flexible to meet my specific requirements. Products are of good quality and accurately described on the website. Product: QS4256
Date Added: Friday 19 June, 2015
5 / 5 stars
Does the job, good quality Product: QS354
Date Added: Thursday 08 November, 2012
5 / 5 stars
great price and fast delivery thanks Product: QS4256
Date Added: Wednesday 09 May, 2012
5 / 5 stars
Your customer service is excellent. The products are readily available at competitive prices. Your customer service staff are very friendly and understanding of the customer requirements. Product: QS354
Date Added: Tuesday 27 September, 2011
5 / 5 stars
Perfect for the job, they fit well and an excellent service. Product: QS4256
Date Added: Wednesday 25 May, 2011
5 / 5 stars
My Thanks,Fast Delivery and well Packed. Product: QS330
Date Added: Monday 07 February, 2011
5 / 5 stars
just what was needed to conect to roof vent Product: QS354
Date Added: Monday 20 December, 2010
5 / 5 stars
Very good service & very good price. Thanks Product: QS330
Date Added: Thursday 05 August, 2010
5 / 5 stars
1st class product and delivery. Received 2 days later Product: QS4256
Date Added: Monday 24 May, 2010
4 / 5 stars
Works great, just don't forget the jubilee clips! Product: QS354
Date Added: Friday 14 May, 2010
5 / 5 stars
Brilliant service. Less than 24hrs from order to delivery. Congratulations! Product: QS330
Date Added: Thursday 13 May, 2010
5 / 5 stars
Hi once again thanks for a swift delivery Product: QS330
Date Added: Tuesday 02 March, 2010
5 / 5 stars
We look all over for this size of reducer, so we decided to google it and found you site. Your site was quick and easy to use, the product arrived the next day, my husband fitted it the next day and everything is working. Excellent, will shop with you again if needed. Thank you. Product: QS4256
Date Added: Tuesday 19 May, 2009
5 / 5 stars
I AM SO GLAD TO HAVE FOUND WHAT I WAS LOOKING FOR . Product: QS4256
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Questions and Answers, do you need more information about this product?

Your question will be sent to a member of our team. We'll email you the answer and post it on this page. If your question is about an order you already placed, please use our Contact Form to reach the customer service team.

#1
size's

IS HTE DIMENSIONS INSIDE DIAMETER or OUTSIDE DIMETER.

Question by dave, 07-09-2015

Hello Dave

Thank you for your question. Please see below the dimensions of the reducer.

Diameter - Inner (mm) 96 and 150
Diameter - Outer (mm) 100 and 155
Replied by Anita from i-sells, 07-09-2015
#2
Use with Ventaxia ACM150T

I need to replace the ACM100T unit and wanted to see if I could use the more powerful ACM150T with this adapter to use the existing ducting?

Question by Paul, 05-11-2015

Hello Paul

Thank you for your question. Yes this item can be used but your airflow will be reduced quite a bitas you are going from 6"- 4".

Replied by Anita from i-sells, 05-11-2015
#3
How to attach

I want to use this to connect 6" flexible bethroom extractor to 4" roof tile outlet will it do it and how best to attach pipe and it to outlet?

Question by Ian, 08-05-2017

Hi Ian

The 150mm connector (Quick Search) QS284 will connect the reducer and your 150mm flexible duct.
I cannot be sure what type of spigot you have on the roof tile but these are often the same type of hard plastic reducer in which case you would need a cut section of straight pipe like QS193 to connect the two, duct tape will complete the connections.
Replied by Ian from i-sells, 09-05-2017
#4
size of ducting

The duct on the extractor is exactly 150 and we need to connect on to 100 flexible ducting. Would this reducer fit.

Question by Steeve Del Castello, 20-07-2017

Hello Steve


Thank you for your question. Yes this item will work but you require a 150mm male connector to join the 150mm end of the reducer to the 150mm ducting on your extractor as both ends are female. If I can help any further please do not hesitate to contact me on 0208 463 9683

Kind Regards
Anita
Replied by Anita from i-sells, 21-07-2017
#5
Order tracking number

Hello, the tracking number for this order isn't available yet even if I made the order about 3 days ago. Can you give some information about the status of the order? Thank you. Best regards, Riccardo.

Question by Riccardo, 20-06-2019

Hello Riccardo


Thank you for your inquiry. I have spoken to our fulfillment center who are shipping your order. The parcel left the depot last night and will be with you Monday/Tuesday.

Kind Regards
Anita
Replied by Anita from i-sells, 20-06-2019
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List Price: 5.83
Only: 2.78 Inc. VAT
Customers who bought this product also purchased
Ducting System Actual dimensions (mm) Space requirements (mm) Airflow mm

For 4" (100mm) extractor fans or for low power cooker hoods up to 250m/hour

System 100 - Round 100 106 7,854
System 100 - Rectangular 110 x 54 116 x 60 5,940

For medium extraction rates or if available depth is limited up to 500m/hour

System 125 - Round 125 131 12,272
System 125 - Rectangular 150 x 70 156 x 76 10,500

For 6" (150mm) extractor fans or for high power cooker hoods up to 500m/hour & above

Megaduct 220 - Rectangular 220 x 90 227 x 97 17,968
System 204 - Rectangular 204 x 60 210 x 66 12,240
System 150 - Round 150 156 17,671
System 150 - Rectangular 180 x 90 186 x 96 16,200

For a shallow space, such as ceiling voids or under floor, where high extraction rates are not needed:

System 300 - Rectangular 308 x 29 314 x 35 8,932
System 225 - Rectangular 234 x 29 240 x 35 6,786
System 100 Round/Rectangle System 125 Round/Rectangle System 150 Round/Rectangle System 204 System 225
System 220 System 300
Actual Dimensions (mm) Space Requirements (mm)

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