MSR - TrailShot Micro Filter

Clean water all day without the weight. That?s the advantage the TrailShot Microfilter provides. Easy one-handed operation filters one litre in a mere 60 seconds.
• Tested: Meets U.S. EPA drinking water standards and NSF protocol P231 for removal of bacteria (99.9999%), protozoa (99.9%), and particulates.
• Pocket-Sized & Light: Like small water bottles, energy chews, mini bike pumps, and tubes, this 142g filter disappears in stash pockets.
• Instant Hydration: Drink directly from the source?without lying in the dirt and refill your bottles or hydration reservoir with clean water.
• Quick-Deploy: Zero set-up and simple one-handed operation fills 1-litre bottles in 60 seconds.
• Simple to Clean: A few shakes helps restore flow rates in the field; no tools required.