Product review (5 stars): These filters are terribly expensive and when you have hard well water you ...
These filters are terribly expensive and when you have hard well water you go thru them like crazy so I am very happy with the purchase price of this filter,  It fit my fridge well and works just like the high dollar filters do.  The filter screws into place and fit my opening great and then ran about 3 gallons of water thru it to get the charcoal out of the water along with the added air that happens when you open the line like that.
Overall I am very satisfied with this filter, it fits my fridge well and works just like the high dollar filters.
I received a discount for testing and reviewing purposes.  This is my honest unbiased opinion and have come to this conclusion by using this filter myself.