Large filter / small pore size

[disc1]

Where would a person look for a big 0.2 micron filter. Something on the order of the size of the filters under your RO unit. Something I can push a few gallons per minute through.

I hear they sometimes use them on house-boats to make drinking water from lake water. Anybody know anything about that?

[Misled]

Hey David. I binged it and it came up with quite a few. From what I read, I'm guessing they are carbon block filters. I did see some that came up under boating. What are your plans for it? I'd worry more about the few gallons per minute.