Originally Posted by macandy13
Does anyone know if regular fittings can be used with acrylic tubing or do you need a certain type of fitting?
Not sure what you mean by "regular fittings", but these are what you see most often, (actually, pretty much exclusively) with acrylic tubing:
There are different colors available, but the Bitspower multi link adapters are what's used.
Now to be sure, they are made for 12mm OD tubing, and seeing as you're in the metric part of the world, should not be an issue.
Here, where everything is in imperial units, like inches, we have to either modify the fitting to accept the slightly larger diameter 1/2" tubing, or slightly reduce the tubing diameter where it goes into the fitting.
How much extra work you'll have to do depends on the exact tubing size you get.
Bitspower crystal link tubes are 12mm OD by 10mm ID, so they have a 1mm wall thickness.
Some if not most of the metric tubing I've seen advertised is 12mm OD by 8mm ID.
While it may not make much difference in a rig built more for aesthetics than overclocking and performance, I'd hesitate to use that small an ID tube in a multi GPU hi performance build.
But I'm just an old woman, so what could I know.