MSR HyperFlow Microfilter

The HyperFlow utilizes the latest Hollow Fiber Technology in a package 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. Also included is a Quick Connect Bottle Adapter™ — 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.

High Flow Rate: Pumps more than 3 liters per minute or one liter every 20 strokes.
Ultralight: Just 7.4 oz. (209 g).
Ultra Small: Just 7x3.5 in. ( 17.8 x 8.3 cm) makes it easy to take along even when space is at a premium.
Field-Maintainable: Can be cleaned repeatedly for flow recovery without tools.
Super Convenient: Quick-Connect bottle adapter lets you filter water directly into a variety of containers, including all MSR® hydration products and Nalgene® bottles.

Specs:
Effective against protozoa: Yes
Effective against bacteria: Yes
Effective against viruses: No
Effective against particulate: Yes
Effective against chemicals/toxins: No
Weight: 7.8 oz / 221 g
Width: 3.5 in / 8.3 cm
Length: 7 in / 17.8 cm
Filter media: Hollow Fiber
Filter pore size: 0.2 microns
Flow (L/min): 3 liters per min
Flow (strokes per liter): 20
Cartridge life: ~1000 liters
Field cleanable: Yes
Field maintainable: Yes