ZeroWater 26oz Portable Filtration Tumbler and 4-Pack Tumbler Replacement Filters - ZT-M02 26oz on-the-go filtration tumbler 5-Stage Filtration removes 99.6% of Dissolved Solids Tumbler is BPA Free and Dishwasher Safe Color changing filter technology Removes 2x more Dissolved Solids compared to conventional 2-stage filtration