Long-lasting and fully field-maintainable MSR WaterWorks Ex Ceramic Water Filter

Long-lasting and fully field-maintainable, the MSR WaterWorks EX Cermaic Water Filter uses a durable ceramic element and a second stage membrane for extra filtering power, so you can drink clean water on your worldly travels. The second-stage PES membrane removes viruses attached to particles .2-micron or larger, making this filter especially good for traveling in developing countries. The WaterWorks EX Ceramic Water Filter returns to like-new filter quality after each clean, and doesn't require any tools for complete disassembly.