I'm looking at getting a Grayl, and this, I did not know. Thank you!Make sure you get the orange purifier unit to go with it as the supplied grey colour one is just a filter unit.
The GeoPress is out of stock most places now, so it's a hunt for the right version with the purifier cartridge.
Edit: the units here seem to all come with black or orange cartridges, both of which are described as purifiers. I can't seem to see any grey ones around? Your post was a year ago so I suppose they may have changed this to save confusion and misuse.
Last edited: