The ZeroWater ZD-013 is the correct system that uses the following replacement filters:
The Zero Water 8 Cup Water Filtration Pitcher uses five sophisticated technologies that work to help remove practically all dissolved solids from your tap water. With a patented 5-stage Dual-Ion Exchange Filtration System, this water pitcher is certified to remove chromium, mercury and lead from your drinking water. This pitcher filtration system includes a TDS Meter and is NSF 42 and 53 certified.
ZeroWater Ion Exchange Filtration Pitcher specifications:
The ZeroWater ZD-013 Water Filtration System is the only water filter pitcher to achieve the required FDA TDS level in purified bottled water to reach 000-010 ppm. To ensure that water passes through the filter and not around the filter, the filter assembly is located underneath the water pitcher. This Zero Water Filtration Pitcher is a cost-effective alternative with high contaminant removal.