they offer some kind of nozzles or some other parts to choose when you want to purchase a waterblock, however i don't know which one to choose, is there any difference? or is it because of the size? i mean for different dimension of cases?
The nozzle size needs to match the tubing used (and the other barbs) in your liquid cooling setup. Tubing is usually 1/4" ID (inner diameter), 3/8", 7/16", 1/2" etc. and the barbs are sized accordingly.
hm.. so the waterblock is just an item to attach to my vga apart from that i need to buy a water cooler for my system rite?
if thats the case any good water cooler?