There is a personal answer. It actually depends on you and your hydration – how much do YOU drink each month?

A more frequent filter replacement plan is better than waiting until the last minute. Most filters are rated to perform “up to” a certain water volume. To complicate things further, filter ratings only guarantee to remove 50% or more of contaminants. So while a filter may be rated to 40 gallons, it means that as you near 40 gallons your filter might only be working at 50% effectiveness. Crummy, right?

KOR believes you should be informed and customize your filter plan to meet your hydration needs. The chart below can be used as a rough guideline.