ZeroWater 23-Cup Pitcher (ZD-018) with 5 Filters and Water Quality Meter 23 CUP WATER FILTERING PITCHER for cleaner, pure tasting water on hand with our BPA-Free filter, Includes a free water quality meter to test your water, so you never have to wonder about its quality. USES FIVE STAGE WATER FILTRATION unlike many water filters & pitchers, to bring you cleaner, better tasting water. Uses Ion Exchange Technology to reduce contaminants. NSF CERTIFIED to reduce lead and other heavy metals. Zerowater removes 99.6% of total dissolved solids, 2X more than the leading brand (tested by independent lab). GET MORE OUT OF YOUR WATER with a variety of options, you can have cleaner water anywhere, from pitchers, bottle filtration systems, or portable on-the-go cup filters. INCLUDES: 23-Cup ZeroWater pitcher, 5 Zerowater Ion-Exchange water filters, TDS (total dissolved solids) Meter