Item Library

Field guide entry

Water filter

Found in 3 guides

Why you need it

If the tap runs but the supply is no longer trusted, a filter turns questionable water into water you can drink without boiling fuel you may not have.

What to look for

A gravity or squeeze filter rated for bacteria and protozoa, with a spare cartridge. Hollow-fibre filters are compact; ceramic ones are slower but very hard to break.

Found in these guides