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MSR Sweetwater Microfilter Purifier System

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Product Details

Get the added viral protection that’s critical in popular wilderness areas and developing countries with this comprehensive purifier/microfilter system. The SweetWater Microfilter removes waterborne bacteria and protozoa, particulate, taste and odors, while the chlorine-based SweetWater Purifier Solution effectively inactivates viruses. Together they provide the most reliable water possible. It pumps easily with a 4:1 mechanical advantage, producing 1L per minute and can easily be cleaned in the field without tools to restore flow rates.

  • Testing: Meets NSF protocol P231 for inactivation of viruses (99.99%), and removal of bacteria (99.9999%) and protozoa (99.9%) from beginning to end of filter life in “worst-case” water.
  • Fresh Tasting Water: Activated carbon core helps eliminate taste and odors.
  • Iodine-free: Inactivates viruses without bad-tasting iodine.
  • Easy to Use: Lever-action pump handle has a 4-to-1 mechanical advantage and dual pump action, so you don't have to work as hard.
  • Lightweight: Entire system weighs just 14 ounces.
  • Compact: Handle folds flat when not in use for easy packing and storage.

Effective against protozoa

Effective against bacteria Yes
Effective against viruses Yes
Effective against particulate Yes
Effective against chemicals/toxins Yes
Weight 14 oz / 397 g
Width 2 in / 5 cm
Length 7.5 in / 19 cm
Filter media Silica Depth Plus Sodium Hypochlorite
Filter pore size (microns) 0.2
Flow (L/min) 1 liters per min
Flow (strokes per liter) 75
Cartridge life 750 liters
Field cleanable Yes
Field maintainable No
Country of Origin Made in the U.S.A. of U.S. and Imported Materials
Mechanical advantage Yes
Water Bottle Adapter Yes
Cartridge replacement indicator Yes
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