Product review (1 stars): Not a great deal when only one of the two filters actually work.
These filters currently have a 50% success rate.  The first one that I used turned my water and ice yellow! :(  After removing and reinstalling several times without success, I tried the other one.  The second filter seems to be working fine.  Not such a great deal when you can only use one of them though.  I didn't discover this until after the return window was closed, so I guess I'll be stuck with one failed filter.