Product review (5 stars): The Best
These are the best filters.  They remove chlorine as well as some microorganisms and some heavy metals.  I would not rely on these to make potable water from contaminated sources.

Be aware this filter adheres to the NSF standard 42 and the more stringent 53.  A lot of filters out there only adhere to the NSF 42 standard.  Buy what you need but just know what standard your filter adheres to.

I do find that there is a difference in taste from this filter.