Product review (5 stars): NSF/ANSI 42 approved filter
This filter cartridge fits and functions perfectly.  Most importantly it is an NSF certified (NSF/ANSI 42) filter.  I also cross referenced this model on the NSF website, so its legit.  NSF/ANSI 42 is merely an aesthetic standard.  As applied to typical municipal water service to a home, it means it will further clarify your water and rid it of that nasty chlorine odor.  Consumers should not construe that lead or microbial contaminants are removed.  If your tap water is otherwise potable but has chlorine odor, this is your filter.  At this price you can't go wrong.  Get the 3-pack for greater savings!