Some of the filters are dual purpose and have some ion exchange resins in them. I think we are simply looking for charcoal filters. They will remove most all chlorine IF the water running thru them is slow enough.. force feed the water thru them and it's a guess. I don't think it will remove chloramine. Get a campden tablet.
I boil my water anyhow.. even from the tap. So, what the filter doesn't remove.. the boiling will. Just being safe.. the drill is.. sanitize, sanitize and ?? oh yah, sanitize. No infections so far.
Hop Song Brewing