Katadyn Pocket Review: Endurance Series Water Filter Waterborne Diseases Heat Map: www.katadyn.com Katadyn Website: www.katadyn.com The Katadyn Pocket water filter technology uses a 0.2 micron ceramic element impregnated with silver. The capacity of the Pocket micro filter is rated at 13000 gallons (50000 liters). The unit meets EPA purification standards for bacteria and protozoa including cysts, Giardia, Cyrptosporidia, Amoebae, Lamblia, E-coli, Salmonella, and Cholera. The Katadyn Pocket filter could be used for expeditions, scouting troops, camping, hiking, kayaking, canoeing, backpacking, or outdoor adventures including hunting and fishing. The filter could also be used in a disaster situation or emergency event. The Pocket filter is a simple design that can easily be cleaned in the field.