When putting together a water ... fittings are usually listed with only the OD, which needs to match the OD for hard tubing. The most common sizes are 1/2 inch (13 mm) and 5/8 inch (16 mm).

1 - Water-Cooling with Hardline ... I would go 16mm, for an ITX rig I might choose 12mm, or if I wanted a more exotic tubing variety or fittings from a particular manufacturer, I would choose ...

In this follow up to our previous Alphacool soft tubing build, we move from the InWin 905 to the InWin 925, and swap over to ...