The 7/16" is really worth it, and is easier to install too with tighter bends.
It is worth it to have the CPU first, as it is the most crucial component in the loop.
Hose clamps are here:
http://www.ncix.com/products/index.p...cture=Swiftech. I love those with the Swiftech 7/16" tubing. Clean, black and tightens the tubing quite well.
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