ZeroWater''s 30 Cup Ready-Pour dispenser is the largest capacity filtered dispenser on the market today. The dispenser body holds 23 cups of the purest tasting filtered water while an additional 7 cups of unfiltered water is kept in reserve waiting to be filtered. As you dispense the filtered water from the spigot, the unfiltered water in the reservoir makes its way through the 5-stage Ion Exchange filter delivering a continuous flow of filtered water. The 30 Cup Ready-Pour dispenser uses the premium ZeroWater filtration system, which combines FIVE sophisticated technologies that work together to remove virtually all dissolved solids from your water. The result is the purest tasting water and the only pour-through filter pitcher on the market that"™s certified by the NSF to reduce both lead and chromium.• 30-cup capacity container• One-handed "push to dispense" spout to fill any bottle or cup• Easy access flap to fill the dispenser while it''s still in the fridge• Built-in TDS meter holder• NSF Certified to REDUCE LEAD• Removes 99.6% of all dissolved solids• Patented 5-Stage Dual-Ion Exchange filtration system• Ion-Exchange system that removes virtually all dissolved solids in your water• The FDA requires the TDS level in PURIFIED bottled water to reach 000-010ppm. ZeroWater is the only filter in its class to achieve this level.Additional InfoZeroWater''s first layer of filtration, activated carbon and oxidation reduction alloy removes the chlorine taste you are accustom to with tap water. The Ion Exchange stage removes virtually all dissolved solids that may be left over from public water systems or even leached into your water from piping such as Aluminum, Lead, Zinc, Nitrate and more. Three additional stages are included to remove other impurities and to ensure your water receives the appropriate amount of treatment time to deliver a "000" reading on your laboratory-grade Total Dissolved Solids meter included.