When do I change my filters?
Your lter set must be replaced regularly to deliver superior results. Based on proven performance data,
tracking usage is the best way to determine the right time for a lter set change.
*
8 glasses
of water is the
physician-recommended
daily intake
1. Determine how many
people use the lter (Bottom of
chart).
Estimate how many
glasses of water each person
uses per day (Left side of chart).
Trace your inputs to
determine when you’ll need a
lter change (Middle of chart).
Time to change my filter
Filter Installation Date
Use this card to help you know when the time has come to replace your lter set. Simply record
the date you install the lter set. Then record the replacement date that’s best for you using
the Change Tracker Chart on the adjacent page.
Filter Replacement Date
®
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