Product review (2 stars): I've installed the filter. Seems to be a fit ...
I've installed the filter.  Seems to be a fit in my Samsung Refrigerator.  However, the PF02 listing stated its NSF 53 certified (which is a main selling point for me).  When I received the product, it was void of ANY NSF markings. Since this peeked my interest, I've went to the NSF database and searched for the manufacture "Purity" with zero results.  I've then searched for "PF02" with zero results.  I've searched for a model "Purity" and it came up with some hits from a company in Germany.  Unless I can find some documentation that these things are actually NSF 53 certified, then I would claim that this item has been misrepresented by being NSF 53 certified (hence the two star rating).  Cheaper filters have at least an NSF 42 certification (verified) which I could have purchased instead.  If the seller can provide actual documentation/certification of NSF, I will gladly update my review, otherwise beware.

UPDATE:  The seller provided me w/ NSF42 Certification.  However, NSF53 Certification was not listed or still has not been provided.