Product review (3 stars): Water comes out fine. On the Amazon website this product states"The Activated ...
Unsure---received this today. Husband installed while I was gone.  Water comes out fine.  On the Amazon website this product states"The Activated Carbon Block Filter inside has NSF 42/53 APPROVAL".  This is one of the main reasons I purchased this off-brand filter, specifically for both types of filtering  However, when I opened up the instructions packet, under the heading Performance Data Sheet, it states: "The concentration of the indicated substances in water entering the system was reduced to a concentration less than or equal to the permissible limit for water leaving they system as specified in NSF/ANSI standard 42". Nothing about 53.  I checked the actual filter, the box, and the rest of the instructions and nothing else was noted.  I guess we are back to buying regular brand name filters--even if they are more expensive!!!