Quote Originally Posted by Martinm210 View Post

Is mH20 more of the metric pressure standard?
Yes I believe so. When discussing PD with Cathar and others it is always in mH20, not PSI or inH20. Since pumps are rated in meters, mH20 makes sense (to me at least) as I have no idea WTF a PSI is equal to in terms of head rating. Well I looked it up, 1 PSI = .70309 mH20. http://www.setra.com/tra/app/app_pcc.htm

I just think it is MUCH easier to grasp when the units (in this case meters are the same).

I also want to add that I have been very critical of DD on their recent CPU blocks, but these new full covers look GREAT! I think I would almost get these over the EK's... sorry Eddy, but these are very free flowing.