Product review (5 stars): 3 for 2
These expensive water filters must be replaced about every 6 months.  They can be expensive, but on Amazon I bought 3 for the same price of 2 (of the exact same item) at the local Lowe's store.  They make the water taste so good, as well as the ice; for that reason, I am regular about replacing them.  How nice it is to get them at such a good price!  It's a real shame "they" don't make these things recyclable!