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MiniWorks Ex Water Filter

MSR MiniWorks Ex Water Filter


4 5 (69)


HyperFlow Microfilter

MSR HyperFlow Microfilter


3 5 (55)


Autoflow Gravity Filter

MSR Autoflow Gravity Filter


4 5 (19)


Quick-Connect Bottle Cap

MSR Quick-Connect Bottle Cap


4 5 (1)


SweetWater Microfilter

MSR SweetWater Microfilter


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MiniWorks/WaterWorks Ceremic Filter Element

MSR MiniWorks/WaterWorks Ceremic Filter Element


3 5 (8)


Autoflow Gravity Filter Replacement Cartridge

MSR Autoflow Gravity Filter Replacement Cartridge


3 5 (2)


Sweetwater Filter Cartridge

MSR Sweetwater Filter Cartridge


4 5 (3)


MiniWorks/WaterWorks Maintenance Kit

MSR MiniWorks/WaterWorks Maintenance Kit


3 5 (3)


Hyperflow Gravity Kit Bladder

MSR Hyperflow Gravity Kit Bladder


1 5 (1)


Hyperflow Microfilter Cartridge Replacement

MSR Hyperflow Microfilter Cartridge Replacement


2 5 (2)


Hyperflow Microfilter Maintenance Kit

MSR Hyperflow Microfilter Maintenance Kit




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