In 1969, Seattle engineer and lifelong mountaineer Larry Penberthy formed Mountain Safety Research as a one-man crusade dedicated to improving the safety of climbing equipment. The fuel behind Larry's passionate fire was a simple belief that still drives our team today: The idea that better, safer, more reliable equipment is the key to unlocking greater adventures. MSR has strong perspectives on how a product should work based on their own experiences in the wild places they love. They believe that innovative solutions are bred by challenging convention, and that functionality, simplicity and reliability are the governing elements of enduring design.
This Microfilter from MSR is a great companion when hiking and camping where clean water is hard to come by. Its reliability makes it hard to beat as well as being both lightweight and compact.
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, its capable of pumping one liter per minute and the flow rate can be renewed easily and repeatedly in the field, no tools required. Meets NSF protocol P231 for removal of bacteria (99.9999%) and protozoa (99.9%) from beginning to end of filter life in worst-case water.
Its lightweight and compact and, most importantly, been proven reliable by thousands of adventurers just like you.
Merchant ID: 31959