Product review (4 stars): Good, but what's with all the initial gray water?
Easy to install.  Good price.  The amount of water needed to be run before drinking (4-5 gallons) seems a bit much until you run the first gallon through the filter - the water was gray.  I'm guessing that's the charcoal inside the filter?  The water tastes good and is crystal clear.  Will compare it with the manufacturers filter to determine if the value is there.