Where can I buy some 150mm outside diameter ducting?

qwerty

Posts: 10975

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Topic starter

Can anyone point me in the direction of some 150mm OD duct that someone like Screwfix sells.

It must be a definite 150mm OD not just sold as 150mm duct / pipe.
Part numbers will help.
I only need enough to go through the wall and cavity, not a long run.

Cheers

Posted : 10/10/2025 8:45 am

fossy

Posts: 9571

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https://www.amazon.co.uk/Silver-Aluminium-Flexible-Hose-Lightweight/dp/B09SZ3WBQB/ref=asc_df_B09SZ3WBQB?mcid=29916480733a3558ae9c1ce70ca631c4&tag=googshopuk-21&linkCode=df0&hvadid=710728313655&hvpos=&hvnetw=g&hvrand=707674405738739335&hvpone=&hvptwo=&hvqmt=&hvdev=c&hvdvcmdl=&hvlocint=&hvlocphy=9208175&hvtargid=pla-2401758588424&psc=1&hvocijid=707674405738739335-B09SZ3WBQB-&hvexpln=0&gad_source=1

Posted : 10/10/2025 9:50 am

fossy

Posts: 9571

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Sorry, link was to some 150mm aluminium ducting on Amazon. Was going to suggest screwfix as that's where I bought some 150mm last, but may/may not be in stock

Posted : 10/10/2025 9:51 am

Sandwich

Posts: 13349

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A trawl through engineering shops in your location may throw up someone doing just the thing. The last time I needed a "through the wall" a local fabricators had just the thing in stainless steel, on the shelf and about £10 (1990's prices). The workshop is still there and may sell mail order to you, Needham Fabrications on 01449 723077.

Posted : 10/10/2025 10:10 am

Greybeard

Posts: 4209

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What material are you looking for? Plastic, aluminium, galvanised steel?

Posted : 10/10/2025 4:47 pm

slowol

Posts: 1768

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How close to 250mm does it need to be? Ducting direct sell 224mm ducting which will likely leave 1cm right round a 250mm hole. I thinkost ducting is sold by I.D not O.D. if you only need a very short bit would a coupling work?

https://ductingdirect.co.uk/products/3m-spiral-duct?option_values=3424250790230

https://ductingdirect.co.uk/products/male-coupling?option_values=3424256786774

Posted : 10/10/2025 7:38 pm

ads678

Posts: 10522

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Posted by: slowol

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How close to 250mm does it need to be?

About 100mm smaller!!

Posted : 10/10/2025 10:49 pm

leffeboy reacted