go here:
http://www.aqua-computer.de/cgi-bin/...num=1014494221
check out the pics of the tubing and specifically the connectors on the blocks and pump and radiators. Im not sure but the thread size may be non standard, and I know the tubing the use is non standard, at least from what I have seen.
you can get a better view of the blocks and such at:
www.aqua-computer.de
click on shop and choose your categories at the left!