Product review (5 stars): Great Value, Work Just As Well If Not Better Than The Manufacturer Brand!
These work just as well, if not better than the manufacturer's alternative, and they're wayyyy cheaper.  I feel that these last longer before needing to be replaced (as indicated by my fridge's filter monitoring light) than the manufacturer brand filter, and they seem to be filtering the water just as well.  I will continue to re-order these for my fridge!  Great value!