Originally Posted by Shafty
So i have an H100i and its ok and all, but im the type of person that its just not good enough. I have the concept down i know i want (1) 200mm rad, (1) 120mm rad, and (1) 120mm rad. im going to be cooling my cpu and video card. I know what all i need except for fittings. I get so confused with the ID and OD dimensions i have no idea what sizes to order.
LOL, it's simple. The ID or inner diameter is the diameter on the inside of the tubing, the actual area the liquid passes through, and the OD or Outer Diameter is the diameter on the outside of the tubing, as in the diameter on the outside of the walls of the tube.
The ID and OD of the compression fitting are the diameters of the tubing it's made for. If you're using barbs, then it will only have an ID indication, because there is nothing clamping on the OD. (Note, you should still get clamps if you're using barbs.)