Product review (4 stars): GE MWF Water Filter - Does what it supposed to do.
My refridgerator is 3 years old and I am now on my 3rd filter.  I live in Illinois and the water taste is terrible.  With this filter, I can drink the water from the refridgerator and find it quite good.  Though my wife does not, she will use the filtered water for her coffee.

Are other filters similar?  I do not know and I am not willing to take the chance with a NON OEM filter unless the pricing gets close to "LIST".