Product review (4 stars): The water tastes fine unlike other users complaints
I have no issues with this.  It does shoot out carbon the first time you use it but thats normal.  The water tastes fine unlike other users complaints.  As far as NSF certified, I bet that has a lot to do with the fact that they the big companies support the testing organization.  It is a carbon filter, it has carbon just like the OEM.  It works, its not overpriced like the GE brand, I am satisfied.