The ceramic outer layer removes larger bacteria, and protozoa. This layer can be repeatedly cleaned for ease of pumping and faster output. A carbon core reduces concentrations of some chemicals, including iodine, chlorine, and pesticides, and improves the smell and taste of the water.

• Made of ceramic, carbon, and plastic.
• Filter elements should be replaced when any part of it fits through the gauge supplied with MSR water filters.
• Effective against all protozoa, and larger bacteria, some chemicals (including iodine and chlorine).
• Improves flow rate of older filters by up to 25%.