You'll know when it's time to replace your ZeroWater filter cartridge when your TDS meter is measuring 006 or above.

ZeroWater 5-Stage Dual Ion-Exchange Filter Cartridge 1

ZeroWater 5-Stage Dual Ion-Exchange Filter Cartridge 1

ZeroWater

You'll know when it's time to replace your ZeroWater filter cartridge when your TDS meter is measuring 006 or above.
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    If you have an issue with or are unsatisfied with your order, then you have 28 days from the date you received it to contact us to let us know.