Koolance CPU-370, or EK Supreme HF for a low flow setup?

[Koolance]

Koolance has had much worse. This example was brand new and never had fluid in it -- I just test-fit a fitting and unscrewed it, and it took a huge chunk of the plating with it. I can flake off more plating with a fingernail. No chemicals involved.

That looks like a first Rev. CPU-330 (early 2007), which used an aluminum top before we switched to brass. It was our learning period with nickel. It lasted a short while and we provided replacements to customers under warranty. Gold was actually easier to plate with, which we used from 2002... I'm pretty sure we were the first company to plate copper as a standard feature.

Tim

[Kayin]

So when are you going back to gold? At least it's nonreactive. Pretty much killed galvanic corrosion...