Product review (5 stars): Excellent Filter
This filter has lasted since 10/2014.  I just purchased my 2nd filter for the refrigerator that was originally purchased 5/2013.  We drink ALLOT of water and I am the heaviest user of the filtered water.  I constantly refill my 750ml water bottle.  The flow recently slowed and that's when I ordered a replacement.  I am not sure why some reviewers have to change their filter more frequently.  Where I live the water comes from a lake and is purified through the city.  It is hard water that Is almost palatable if it didn't have so much chlorine in it.