Moosejaw Staff Pick
"I prefer to drink nasty filthy water. For those who do not, I recommend picking up a Hyperflow Filter from MSR. Even though it is very small and lightweight, it can filter 3 liters an hour, which is about 3 times more efficient than most water filters. The Hyperflow also comes with a pre-filter for those who like their water free of sand. Personally I find that nice crunch to be quite satisfying, but to each their own. To clean this bad boy out all you need to do is flip some valves around and back flow the filter. Like I said, I'm not that into clean water, but for those that don't like intestinal parasites, the MSR Hyperflow is the filter for you."
Andy - Partridge Creek Moosejaw

The Hyperflow Microfilter by MSR. The HyperFlow microfilter utilizes the latest Hollow Fiber Technology and MSR's most advanced engineering to make water treatment so small and so easy to use, it will change the way you travel in the backcountry. Its ergonomic design, diminutive size and tool-free maintainability make it just as appropriate on day trips as it is on multi-day excursions. Add a filtration rate of 3-liters per minute and you've got the most efficient microfilter ever created. Also included is a Quick Connect bottle adaptor-allowing direct connection to all MSR hydration products and a variety of other "wide mouth" containers-and an advanced prefilter to prolong the life of your filter.

DECENT FEATURES of the MSR Hyperflow Microfilter

• Super-Fast: Pumps up to 3 liters per minute
• Ultralight: It's our lightest, most compact pump filter
• Field Maintainable: Can be cleaned repeatedly for flow recovery; no tools required for complete disassembly
• Super Convenient: Includes our unique Quick-Connect replacement cap that works with all MSR Hydration products and other "wide-mouth" containers with 63mm threaded openings

The SPECS

• Protozoa
• Bacteria
• Particulate
• Weight: 7.8 oz / 221 g
• Dimension: 7" x 3.5" / 17.8 x 8.3 cm
• Filter Matrix: Hollow Fiber
• Filter Pore Size: 0.2 Micron
• Flow: 3 Liters per minute
• Flow: 20 Strokes per liter
• Cartridge Life: 1000 Liters
• Field Cleanable
• Field Maintainable
• Water Bottle Adapter

This product can only be shipped within the United States. Please don't hate us.