MSR says about the MiniWorks EX Microfilter

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

Product specifications