Katadyn Pocket Replacement Filter Element - The Katadyn Pocket Microfilter Replacement Element is designed for use with the Katadyn Pocket Microfilter. 13,000 gallon capacity. The .2 micron silver impregnated ceramic element is effective against bacteria and protozoa. Kit includes outlet hose, lubricant for o-ring, spring, and two cleaning sponges. 13,000 Gallon capacity Effective against bacteria and protozoa Silver impregnated ceramic element Filters to 0.2 microns Includes: Outlet hose Lubricant for O-rings Spring 2 sponges