MSR Sweetwater Microfilter

MSR Sweetwater Microfilter is rated 4.7 out of 5 by 48333.
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4.5 Star Rating
4.5
$64.95   $89.95
28% off

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Product Description Item No.   10238478

The Sweetwater Microfilter by MSR. Treading the middle ground between MSR's lightest and most durable filters, the SweetWater Microfilter makes water treatment easy. Simple, lightweight and versatile, it's the perfect water treatment option for light to moderate use, with the capacity to easily step-up to the demands of the occasional big trip. It pumps easily with a 4:1 mechanical advantage, producing 1.25L per minute and can easily be cleaned in the field without tools to restore flow rates.

FEATURES of the MSR Sweetwater Microfilter

  • Fast and Easy to Use: Pumps more than 1 liter per minute
  • Granulated Activated Carbon: Helps remove chemical contamination
  • Compact and Light: Handle folds flat for superior packability
  • Easy to Clean: Simple brushing restores flow when clogged
  • Testing: Testing: Meets NSF protocol P231 for 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
  • Easy to Use: Unique lever-action pump handle has a 4-to-1 mechanical advantage
  • 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
  • Made in USA

- + Product Specifications
Disclaimer: We only ship this brand to US Addresses.
Filter Rate: 1 liter / minute
Packed Dimensions: 7.5 x 2 in.
Weight: 11 oz
Features: Made in USA, Field Cleanable, Replaceable Filter
Best Use: Backpacking, Hiking, Camping
Effective Against: Protozoa and Bacteria
Cartridge / Cycle Life: 750 liters
Filter Type: Pump
Rated 5 out of 5 by from Absolutely fantastic! I have had my eye on this product for quite awhile. After doing extensive research into various filter methods and brands, I chose the SweetWater filter. I'm happy I did. During a 3 day backpacking trip deep into Rocky Mountain National Park, this filter performed flawlessly for the needs of me and my fiance. The rest of our group struggled with their own methods of filtering, due to low ability to filter water at a reasonable volume, and concerns of contamination. By using the SweetWater, we were able to filter more than enough water for cooking and hydration, and the ease of use and assembly were flawless. I highly recommend this product. Well done MSR.
Date published: 2014-11-12
Rated 5 out of 5 by from Customer service Customer service is where MSR/Cascade Designs shines. After 5-6 years of frequent use, noticed hairline cracks in central piston, as well as flow through pressure relief circuit even with new filter element. Reasonably fast response to email, and pump unit replaced after I sent it in. I am only out postage one way. This is what keeps me coming back to MSR. Unit itself works well. Good flows, and filter function appears to work well. As with any filter, bacterial/protozoa filters; virus needs chemical treatment (at lower dose than without filtering). This is simply physics and biology. Storage recs are to keep in freezer to avoid bacterial overgrowth, but I've dried unit not done this without obvious problems.
Date published: 2015-08-08
Rated 5 out of 5 by from Heavily tested: India, Nepal, AK, CA, OR, etc I've had this filter model for 10 years, and use it without adding chemicals including in cities and villages of India and Nepal. I have used it in the winter when it freezes at night and still works, in silty glacier water when desperate (will do .5L, then needs a brushing), and some nasty looking places at times. Couple notes: I have never seen the "grid" pattern show up that means the filter needs to be replaced... though I think ive done over 700 liters on some cartridges. With the filter material, it is hard to tell if it does have a crack in it... if it is dark and you are in a stupid state it is possible to bend the lever the wrong way and pop the assembly apart, but a little string/wire/tape will fix it. Pump unit has started leaking now, but ive been using this pump with new cartridges for probably 5 years.
Date published: 2014-12-18
Rated 5 out of 5 by from Best filter on the market I bought this filter in 1996 and have used it multiple times every year. I still have had no problem with it. Just got to wash out the filter after each trip.
Date published: 2015-12-07
Rated 4 out of 5 by from Sweet water filter skims the water nicely This filter pumps water smoothly, feels sturdy, works on a one-stroke action so it is slower than dual strokes...the floating hands-free intake design and simple construction along with the great tasting water make it a favorite for me.
Date published: 2016-06-01
Rated 1 out of 5 by from Joseph's example happened to me, too We purchased the filter in May, I backpacked 1 night in June. It worked perfectly in the kitchen sink, then worked at night when I arrived at camp. The water I used was very clear. The filter did not work the next morning. I had the brush with me and used it extensively. Still the filter did not clear. Luckily, I had filled my dog's pack bladders the night before, so I used her water, and filled her bladders from the stream. I have to say, that the water from the stream looked as clear as the water I had filtered. When I got the pump home, I ran it through the kitchen sink, and it worked again. C'mon MSR. Tell me what's going on? I don't want a copy of your printed instructions, I want you to reply to my post so I can avoid this on the next overnight.
Date published: 2016-07-31
Rated 1 out of 5 by from Not too happy with msr. Purchased an msr sweetwater micro filter. After opening and trying it at home at my sink it immediatley was pushing water out of the overflow due to a clogged filter. So I sent the filter back to msr and I was told that I would have to pay for a new filter cartridge even tho it was clogged right out of the box new. So what was I to do I had already paid for the filter and it would be worthless to me that way so I was forced to purchase a replacement cartridge. Needless to say I won't be buying anymore msr products.
Date published: 2016-01-22
Rated 5 out of 5 by from Fantastic I've used this water pump for over 15 years and it hasn't stopped yet. Never had a problem with it. Especially if you use the pre-filter.
Date published: 2016-10-21
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does the fill tube have a quick connect fitting for hydration blatters?

Asked by: steve78
Hey Steve78, The MSR Sweetwater Microfilter has an adapter that fits waterbottles and some hydration bladders. I hope this helps!
Answered by: Rocko Gigsby
Date published: 2016-02-02
  • 2016-12-04T08:28CST
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