Waste of parts, effort, and added restriction to watercool the ICH10R southbridge when almost any small passive sink will be more than sufficient.
If everything is cleaned properly before assembly, you shouldn't need a filter in the loop. Might be useful for catching flakes of nickel or chrome from a bad plating job, but I'd avoid such iffy components in the first place.
...rightful liberty is unobstructed action according to our will within limits drawn around us by the equal rights of others. I do not add 'within the limits of the law,' because law is often but the tyrant's will, and always so when it violates the right of an individual. -- Thomas Jefferson