Product review (5 stars): Nine months from first filter install until third filter needing replacement  ,
I have just replaced my last filter from the three pack and after checking the dates from the installation of the first filter until now these lasted 9 months almost to the day , this is in a house where I am drinking water or coffee , nothing else , I hate tea , juices and  sodas , milk makes me sick , beer free for over 25 years  now  , so its water or coffee , my 5 dogs are also only given water ran through these filters , I use the heck out of these ,  nine months seems pretty good for the amount of water I run through these filters , the taste of the water seems no different than the filter I had bought in the past from whirlpool for an insane amount of money , be sure to run a few cups of water through the filter to remove air and discoloration from the filter before drinking , enjoy