Product review (1 stars): Completely Incorrect Product Listing - Does Not Filter Water Other Than For Taste!
The product listing for this item is completely incorrect.  It DOES NOT filter out health-related contaminants or harmful substances per the NSF organization that certifies these.
Genuine GE MWF filter is NSF53 certified, this product (like most of the "replacements") is only NSF42 certified.
NSF42 is labeled by the NSF as "aesthetic" filtering - ie. it only filters for taste
NSF53 is labeled by the NSF for "health effects" - ie. it filters out health related contaminants such as giardia, VOCs, methyl tertiary-butyl ether, etc.

See the NSF . org site for more info