Taste the freshness in every sip! GoZero Everyday filter effectively improves the quality of tap water by reducing chlorine*. No compromise on the water flow! ? Double-wall vacuum insulation Double-wall vacuum insulation keeps the water cold for hours, so that you can stay refreshed. ? Dishwasher-safe All parts are dishwasher-safe (max. 50 degree Celsius) except for the filter. ? Delicious water at a fraction of the cost of bottled Water Great tasting water at a fraction of the cost and waste of bottled water.