Mountain Safety Research

Mountain Safety Research SweetWater Microfilter Water Filter


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Mountain Safety Research SweetWater Microfilter Water Filter

Lightweight and compact, the SweetWater Microfilter makes water filtration fast and easy.

  • Fast: Pumps water on both up and down strokes for a fast flow rate of 1.25 liters per minute
  • Easy to Use: Unique lever-action pump handle has a 4-to-1 mechanical advantage, so you don't have to work as hard
  • Lightweight: Weighing just 11 oz., it's one of the lightest filters on the market
  • Compact: Handle folds flat when not in use for easy packing and storage
  • Dependable: Eliminates over 99.9999% of all waterborne bacteria and 99.9% of common protozoan parasites, such as giardia and cryptosporidia
  • Simple to Maintain: Simple brushing will restore a clogged filter, and the pump lets you know when the filter needs replacing (each cartridge filters up to 200 gallons of water)
  • Weight: 11 oz./320 g
  • Dimensions 7.5 x 2 in./19 x 5cm
  • Cartridge Life: Up to 750 liters, depending on conditions

Purchase the Mountain Safety Research SweetWater Microfilter Water Filter from All order totals over $45 qualify for free ground shipping.

5 Star Rating


5 Stars Rich Smith - April 24 2010

Nice and Compact
I recently purchased MSR's Sweetwater Microfilter Water Filter. I haven't had a chance to use it in the field, but out of the box it is very easy to use, quite compact, and lightweight. It will be a great addition to my next BWCA trip.

5 Stars John M - October 25 2009

Great product! Well made and works well
Used in sub freezing weather without a hitch. Well manufactured and fairly compact. Item worked as advertised and held up in very adverse conditions.

5 Stars Joel Waldman - May 21 2009

Works Great
I recently partook it a 3 day backpacking trip and the other members were using Iodine tablets to filter water. I used the the SweetWater Microfilter and it worked excellent! By the end of the trip, everyone was drinking my water.

5 Stars Tim - April 10 2009

gets your water clean
It's prity simple, pump water out of stream and into your bottle. Gets it clean. I also purchased a pre filter. They say it makes it last longer, but I haven't had it long enouph to know how true that is. for the price, you cant go wrong

5 Stars claw - September 12 2008

great filter/purifier
Owner for six years. Used it under trying conditions in hiking and camping trips in Ghana, Africa. Easy to use and travel with. Never failed and I never got sick. Left it in Africa and purchased a new one yesterday. Strongly recommended. Bullet proof.

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