Product review (4 stars): Instillation a little weird
I bought this filter for my GE Refrigerator.  I first installed the filter and after a series of "a loud racheting noise", no water would come out.  I took it out and tried and tried again.  Always the same loud racheting noise and no water.  Tried it without the o-ring...  Water everywhere.  Gave up and put the old filter back in.  No problem.  I tried the next day with no luck again.  Same results as the day before.  Third day I started looking for how to return it and started reading reviews closely.  I came across several posts stating to turn it more than it says to, or until it won't turn anymore(this might take a little extra force).  I give it a whirl and sure enough it turned more than I thought it would..about a 1/4 more than I was turning it before.  It works fine.  No leaking, and no problems.  The o-ring might be a little big making it need a little more twist to seat it, but once its set your in business.  Water doesn't have a funny taste and hopefully it holds up.  Hope this helps if your having issues installing it.