REMOVES BACTERIA, VIRUS, PARASITES, LEAD. The DuraFlo Water Filter Replacement – used in the AquaBrick Water Purification System, has been tested and proven by independent water laboratories to remove bacteria, virus, giardia, cryptosporidium, lead, chromium and other water borne toxins and chemicals. Provides purified drinking water from ANY NON SALT WATER SOURCE. HIGH PERFORMANCE PURIFIER. The DuraFlo removes: 99.9999% BACTERIA, 99.99% PROTOZOAN, 99.99% VIRUS, 99.5% LEAD. PURIFIES TAP WATER by removing heavy metals, such as lead, fluoride, chlorine, chromium, industrial waste, toxic chemicals, pharmaceuticals and other pollutants. USE WITH OTHER GRAVITY FED WATER FILTER SYSTEMS. The DuraFlo Water Filter Replacement works with any gravity water filter, such as Katadyn, Aqua Pur, Doulton and the Berkey water filter, making these systems into water purifiers – not just filters. FAST FILTER FLOW RATE. DuraFlo replacement filter flows up to 9.5 gallons per hour through gravity fed systems. Purifies up to 30 gallons of clean drinking water per hour, as part of the AquaBrick Water Purification System. Comparable flow rates for other gravity fed water filtration systems are about 1.75 gallons of per hour, per filter. DURABILITY. The DuraFlo Replacement Filter can be frozen, dropped, stored for long periods. Impossible to over tighten the filter when installing it in the water container, which can happen with traditional “candle stick” filters. Visit AquaVeritas.org for more information on the water filter you use. DURAFLO FILTER END OF LIFE TEST RESULTS. The DuraFlo Water Filter Replacement achieved EPA Standards for the stated number of gallons: Bacteria: 700 gallons Giardia/Cryptosporidium: 700 Gallons Virus: 550 Gallons Swimming Pool Water: 500 Gallons Test results are available upon request.Sagan Life DuraFlo replacement water filter for Sagan Water Systems