MSR Miniworks EX Microfilter
The MSR MiniWorks EX Microfilter is the world's best-selling microfilter, delivering long-lasting, field-maintainable water filtration in demanding environments. Engineered for frequent and heavy use, it uses MSR's workhorse Marathon EX carbon/ceramic element to ensure clean, reliable and taste-free water. Thanks to its innovative AirSpring Accumulator, the filter is capable of pumping one liter per minute, and the flow rate can be renewed easily and repeatedly in the field--no tools required. The EX is lightweight and compact and, most importantly, has been proven reliable by thousands of adventurers just like you.