Drinking straight from crystalline mountain streams is nice in principle, but a lot less awesome when you end up running for the bushes every five minutes for the rest of the trip. There are plenty of ways to help save yourself from waterborne bummers, but none that are as effective, easy to use, and reliable as the Guardian Purifier System from MSR. Developed for, and in conjunction with, the US military, the Guardian uses new Hollow Fiber technology to filter out just about everything (protozoa, bacteria, particulate, and even viruses), so you can sip fresh, clean water without first checking that you packed extra TP. The Guardian has an easy pump-action design that can filter up to 2. 5L per minute, and an ingenious self-cleaning design--10% of the water from every stroke flushes contaminants from the filter, so it never gets clogged or becomes less effective. The wastewater is discharged through a tube that runs parallel to the intake, so it empties easily back into the water source. MSR also included a water-bottle adapter for easy fill-ups, and a cartridge life indicator that lets you know when it's time to switch (although the included filter is good for at least 10,000L, so it might be a while before it's that time).
Options, sizes, colors available on Backcountry
Manufactured by MSR
MSR Guardian Purifier System ships and sold by Backcountry
Price subject to change
*Shipping and Returns: Some exclusions apply, see cart on Backcountry for details
US-Parks.com has partnered with Backcountry to offer the best outdoor gear for your outdoors adventure
Currently Viewing MSR Guardian Purifier SystemMore by MSR
The North Cascades have long been known as the North American Alps. Characterized by rugged beauty, this steep mountain range is filled with jagged peaks, deep valleys, cascading waterfalls and glaciers. North Cascades National Park Service Complex contains the heart of this mountainous region in three park units which are all managed as one and include North Cascades National Park, Ross Lake and Lake Chelan National Recreation Areas.
Badgers are animals of open country. Their oval burrows (ten inches across and four to six inches high) are familiar features of grasslands on sandy or loamy soils of the eastern plains or shrub country in mountain parks or western valleys.