Product review (4 stars): Lesson learned - Stick with OEM - There is a difference
I have typically been buying aftermarket filters. These were on sale so I thought i would give the "real thing" a try to see if there was any discernible difference for the extra money.
Now keep in mind that I am just as happy to just drink from the faucet because I didn't taste a difference while my wife prefers the filtered water from the fridge.  Much to my surprise with actual Aqua-Pure filter on there is a very noticeable difference in the flavor, so much so that I am now installing a filter for the kitchen faucet.

Take if from a guy that is pretty tight with his money; some things it is just best to buy the best.  Water filters are now on that list for me.