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Katadyn Gravity Water Filters

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KatadynBeFree Gravity Water Filter - 6 Liters
$119.95
58 reviews with an average rating of 4.2 out of 5 stars
Filter Type:
Gravity
Best Use:
Backpacking, Camping
Removes/Destroys:
Protozoa And Bacteria
Weight:
8.9 ounces
Add BeFree Gravity Water Filter - 6 Liters to Compare
KatadynGravity BeFree Water Filtration System - 3 Liters
$79.95
263 reviews with an average rating of 4.1 out of 5 stars
Filter Type:
Gravity
Best Use:
Backpacking
Removes/Destroys:
Protozoa And Bacteria
Weight:
6.8 ounces
Add Gravity BeFree Water Filtration System - 3 Liters to Compare
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Related Expert Advice articles

Filter vs. Purifier

Filters: Remove protozoa (Cryptosporidium, Giardia) and bacteria (E. coli, Salmonella)—main concerns in the U.S. and Canada.
Purifiers: Also combat viruses such as hepatitis A, rotavirus and norovirus.

Filter Types

Straw: Light, easy to use. Only works at water source.
Bottle: Lightweight, quick, affordable. Water volume limited by bottle size.
Gravity: Easy to use, handles large quantities of water, has a replaceable element.
Pump: Precise, works in shallow water, has a replaceable filter. Bulky.
Ultraviolet light: Fast, no filter to replace. Requires batteries and prefiltering for cloudy water.
Squeeze: Compact and affordable. Water quantity limited by reservoir size.
Chemical: Inexpensive, ultralight backup method. Long wait time, doesn't taste great.