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HyperFlow Microfilter

MSR HyperFlow Microfilter


3 5 (55)


MiniWorks Ex Water Filter

MSR MiniWorks Ex Water Filter


4 5 (68)


Quick-Connect Bottle Cap

MSR Quick-Connect Bottle Cap


4 5 (1)


SweetWater Microfilter

MSR SweetWater Microfilter


4 5 (22)


GravityWorks 2.0L Dirty Reservoir Replacement Kit

Platypus GravityWorks 2.0L Dirty Reservoir Replacement Kit




Hiker Pro Water Microfilter

Katadyn Hiker Pro Water Microfilter

$76.45 $84.95 10% Off

5 5 (31)


Pocket Water Microfilter

Katadyn Pocket Water Microfilter

$332.95 $369.95 10% Off

5 5 (5)


Hiker Water Microfilter

Katadyn Hiker Water Microfilter

$62.96 $69.95 10% Off

4 5 (15)


Combi Microfilter

Katadyn Combi Microfilter

$197.95 $219.95 10% Off

4 5 (2)


SteriPEN FitsAll Filter

Hydro Photon SteriPEN FitsAll Filter

$13.46 $14.95 10% Off

4 5 (7)


Mini Ceramic Microfilter

Katadyn Mini Ceramic Microfilter

$98.95 $109.95 10% Off

3 5 (5)


Out With the Bad

Portable Water Filters Explained


The most important difference between water filters and water purifiers is that water filters do not eliminate viruses. Water filters rely on either gravity or a manual pump to force water through a filter with holes usually about a few tenths of a micron across (1 micron = one-millionth of a meter). While this is small enough to block bacteria and protozoan, many viruses are small enough to pass through. The good news is that viruses are rarely found in North American wilderness waters, so this is mainly only a concern when traveling internationally.

Backpacking Filters:

Lightweight and compact, backpacking filters are good options for hiking or traveling. Most are pump-operated and designed to fill your personal water bottle.

Browse Backpacking Water Filters

Camping Filters:

Basecamp filters are ideal for providing clean water for larger groups with a fixed campsite. Most use gravity to force water through the filter so you don't have to waste energy pumping.

Browse Basecamp Water Filters