MSR SweetWater Purifier System

Item # MSR02275   |   Customer Rating: Read 6 reviews  |    Bookmark and Share

Qualifies for Free Shipping and Free Returns
Price: $99.95

In Stock! Ships Monday, April 27.

Key Features

  • Iodine-free: Inactivates viruses without bad-tasting iodine.
  • Fast: Pump at a fast flow rate of 1.25 liters per minute, then add five drops of the purifier solution per liter and wait five minutes for optimal protection.
  • 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.


Recommended Use: Popular wilderness areas or developing countries
Item Weight: 14 oz.
Dimensions: 7.5 x 2 in.
Field Maintainable: No
Filter Material: 0.2 micron Silica Depth
Removes: Giardia; Cryptosporidium; Bacteria; Viruses; Taste
Flow Rate: 1+ Liters per minute

Product-Related Videos

  • Product Demo
    MSR SweetWater Microfilter   MSR SweetWater Microfilter
  • Tech Talk
    Types of Water Treatment for Backpacking   Types of Water Treatment for Backpacking
  • Tech Talk
    MSR Water Filter Introduction   MSR Water Filter Introduction

Product Highlights

The MSR SweetWater Purifier System combines the advantages of a purifier and a filter into one system for added viral protection in popular wilderness areas and developing countries, or anywhere with considerable human activity.

The system consists of the MSR SweetWater Microfilter, which protects against protozoa and bacteria, the chlorine-based MSR SweetWater Purifier Solution for additional protection against viruses, a Universal Bottle Adapter that allows the microfilter to work with a number of different water containers and a cleaning brush. With this system, you can pump 1+ liters of water per minute, add the SweetWater Purifier Solution, wait 5 minutes, and you're left with microbiologically safe, good-tasting water.

When used according to the instructions, the SweetWater Purifier System inactivates 99.99% of waterborne viruses; and eliminates over 99.9999% of all waterborne bacteria and 99.9% of common protozoan parasites, such as giardia and cryptosporidia, as well as particulates, bad tastes, and odors.

The SweetWater Microfilter pumps on both the up and down strokes. The cleanable, granular activated carbon filter is good for up to 750 liters of water before replacement. At only 14 oz., the system is lightweight and the microfilter unit measures 7.5 in. x 2 in.

MSR part number: 02241

Product Reviews

Average Customer Rating:
MSR SweetWater Purifier System

Average customer rating:
Number of reviews: 6

Individual Customer Reviews:

Displaying Reviews 1-3 of 6 | Read All Reviews

  • Alexander D. Mossyrock WA

    Likes: The MSR SweetWater is easier to use than other filters I've owned and the water tasted good even when using the purifier solution. It didn't leave the water tasting like iodine. The fill cap fits my Nalgene bottles perfectly. I keep the outlet hose in a ziploc bag to keep it from getting contaminated while in my pack.

    Dislikes: Nothing

  • Karen H. Londonderry NH

    Likes: It was shipped very quickly. The product itself works very well-exactly as described. A couple of liters pumped in 5 minutes or so, into multiple bottles.

    Dislikes: The "clean water" tube and the "dirty water" tube are stored by wrapping around the body of the filter (together!). There is a potential for cross contamination of the hoses, introducing bacteria into the system. I made my own storage to keep them separate and store the "clean" tube away from the dirty tube. This should be standard with this product. IMO

  • Eric D. Centerburg OH

    Likes: Works as advertised, light and packs small. I don't have to carry a bunch of bottled water any more. Super fast shipping...

    Dislikes: Nothing.

  • . Clinton MS

    Likes: Originally bought one of these a couple years ago and was so impressed with it that I bought another one for my son for when we go up in the mountains camping. It has worked wonderfully without any worries at all. Its pump flow per liter is slower than other brands, but that to me is a good thing because it is filtering more thoroughly at 0.2 microns in a ceramic/charcoal filter rather than the 0.3 micron fiber/paper filter typically used in other microfilters. I highly recommend this product to anyone that spends any time outdoors and likes to pack light without the added weight of carrying water. It’s durable and very easy to use and maintain.

    Dislikes: Nothing! Excellent product.

  • Anonymous Backcountry Edge Customer

    Likes: Lightweight easy to use pump.

    Dislikes: no dislikes

  • Carl W. West HARTLAND CT

    Likes: Just got back from the Bog River Flow in NY state and this pump worked GREAT, 4 guys for 4 days never failed. It was easy to use and easy to clean.

    Dislikes: Nothing...

Read All Reviews