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What is the smallest size of hard tubing?

Discussion in 'Watercooling' started by zogthegreat, 28 Nov 2019.

  1. zogthegreat

    zogthegreat New Member

    10 Sep 2011
    Likes Received:
    Hi everyone,

    I've been out of the modding scene for the last couple of years and I am planning a small(ish) project to get back into the swing of things. I have a dual CPU Supermicro X8DTT-F blade server that I use for compiling and "other stuff". It has 2 X's Xeon E5645 and 64gb ECC DDR3 memory. I know that people usually don't do custom cases and water cooling on server boards, but since this is a "test" build, I'm going with hardware that I have on hand. Besides, once I start my build thread and people see the Frankenstein setup that I currently have for my server, I think that everyone will say, "Yeah, you really needed to do something about that!".

    Like I said, I'm planning to do a water cooled setup and I would like to try ridged tubing on this build. However, I'm trying for a fairly small and compact design so I would like my tubing to be as small as possible.

    Any input would be appreciated.


  2. Cheapskate

    Cheapskate Insane? or just stupid?

    13 May 2007
    Likes Received:
    If I remember correctly, 1/2" OD is the smallest hard line fitting.
    Pretizx likes this.
  3. LePhuronn

    LePhuronn Active Member

    6 Oct 2016
    Likes Received:
    Smallest hardline tubing you can get is metric 12mm OD. Just make sure you properly match fittings and tubing because metric and imperial won't mix. For example, 1/2" OD Cheapskate mentions above is 12.7mm so that's too big to fit in 12mm fittings and too small to fit in 13mm fittings.

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