Product review (5 stars): Avoid discountfilter brand  EcoAqua EFF-6013A but genuine GE MWF here due to NSF standards
I have always bought the GE MWF brand here and have been very happy but today I almost bought an off-brand filter from the add right here on this page that linked to discountfilters for only $16 bucks vs $42. Why not save of course you have to buy 3 to average that price but why not, it's way less than the GE MWF.  Just for the heck of it I researched the details of each and both have 300 gallon 6 month and both have .5 gallons/min flow rate.  I google searched and read about NSF standards ending up right back on their site and thought, yes, that is important, and google searched a while to see if they both were NSF rated.  Some places claim it is nsf rated so I almost bought it.  Then Coincidentally again my google search brought up discountfilters site (I give them credit, they write good overviews that show no bias towards their own featured product)
In any case, go the this link below and read under product comparison (purplish grey text) and you'll see 2 of the 3 have NO NSF rating which means things like chlorine etc are not being filtered out.  I know the 42 NSF rating is still not stopping all chlorine etc and could be better but at least it is tested by NSF!  I searched NSF and could not find any information about EcoAqua filters.  so for my family I choose to be safe and use the NSF rated GE MWF filter until I get further information that says the EcoAqua filter is just as good. (and it probably is, but I'm not taking that chance). Hope this helps someone out there.  [...]