ZeroWater Filter Replacement
ZeroWater 5-stage replacement filters (ZR-017): replace when the TDS meter reads 006 ppm or above (all ZeroWater pitchers include a built-in TDS meter holder slot for the included meter). There is no calendar-based replacement interval -- replace based on TDS reading. Replacement filter costs: 2-pack $20--$25, 4-pack $38--$48, 8-pack $65--$85. Buying the 8-pack provides the best per-filter price ($8--$11 per filter) and is the recommended purchase for high-volume households. ZeroWater filters are available at Target, Costco, Walmart, Amazon, and most major grocery chains. Filters are model-nonspecific -- the same ZR-017 filter fits all ZeroWater pitcher and dispenser models.