Alexapure Pro Stainless Steel Water Filtration System - 5,000 Gallon Throughput Capacity Removes up to 99.9999% of 200+ water impurities, including lead, bacteria, viruses, cysts, chlorine, fluoride, TCP, E. coli Groundbreaking gravity block core filter with hybrid ceramic shell Pour unfiltered water in, get sparkling clean drinking water out; Performance of filters may vary due to source water conditions, water turbidity and seasonal water conditions Gravity fed filtration runs without electricity making it essential for emergencies Raw water capacity: 8.5 liters (2.25 gallons) - Filtered water capacity: 8.5 liters (2.25 gallons)