Product review (4 stars): Seems to work.  Don't have scientific evidence to prove it
Seems to work.  I have no idea if this filter performs as well as the OEM filter.  It's supposed to meet the appropriate ASTM standard and costs less.  Our city water tastes foul.  It tastes neutral after passing through this filter.  By taste I can't tell the difference between the OEM filter and this one.  Water flows a bit faster though.