Product review (5 stars): Filter Fresh - Stick with OEM
I am sticking to the OEM and replacing every 6 months. We live in semi-rural OH surrounded by working farms and a large lake, and there is a clear odor and taste difference between the tap water (public supply) and the filtered water dispensed from our refrigerator. We use filtered water for anything being ingested - water, tea, coffee, brewing beer, cooking and notice  no deterioration in filter performance during the recommended 6-month use cycle.