Product review (2 stars): Not as good as the old Filter
Not as good as the old Filter. The water does not taste very good sometimes and sometimes it nosies. The water run better but it make nosies. Amazon is being very nice and replacing it. I called Whirlpool and they said it was Amazon fault because they sell returns?  I find that hard to believe. The old filter was 2 months pass 6 months and work better. I let you know about the next one.
Update  02/17/2016
I returned the second one also. If my glass of water got warm and I took a drink, the water would taste so bad I would pour it out. My tap water is better. Even after sitting awhile and getting warm, the taste was better. I will not buy again until they fix them.
UPDATE 04/24/16
I called Whirlpool filter department and they send me one and it works great. I guess I got 2 bad ones.