The Aquaporin Inside® DWRO™ reverse osmosis membrane inside ONE filters out up to >99% of all dissolved solids and contaminants in your tap water.
The cartridge replacement intervals are indicative only as the condition is affected by the quality of the source water which may vary. A light on the front panel will indicate when it is time to change your cartridge.
After replacing the DWRO™ membrane, open your faucet and let the water flow for 30 minutes.