The cartridge life lasts about 300 liters of water.
For optimum results we recommend changing your filter every 2-3 months.
Replace the filter
1) Remove the filter from the foil bag and remove the sticker from the underside.
2) Soak the new filter in cold water for 15 minutes.
3) Install the new filter back onto the reservoir. Press the filter firmly into the provided opening until it's locked.