Product review (5 stars): Stick with the Orginial..dont event think about imitations.
I made the mistake of buying the imitation that lasted less 2 months. The imitation turned my dogs ceramic bowl pink.
So I bought this original Kenmore and no more pink ring. Something in the filter is definatly working and my kids said.. the water tastes sweeter. Thats when I know.. I will stick to this filter from now on.