Water filter

A water filter is a junk item $$

Gameplay
It's a single-use component used to craft purified water.

Locations

 * A plan for the water filter is always present at Pioneer Scout camp to the southwest, at the bow shooting range, inside the wood cabin, on the table to the right.
 * It can also be found at Knife Edge to the right of the tinker's workbench.
 * A plan may be found at Smith farm in the nearby shack next to the cooking station.
 * A plan can be found at Grafton Station on a wooden crate at the southern end of the platform.
 * A plan can be found in Grafton Steel on a cabinet to the left of the chemistry workstation.