Thanks for the quick reply, Doug.
I think the labelling has changed and it is now just called "Micropur classic" but is still listed on the Katadyn site...
I think the "MF" was to distinguish the fluids from the powders and tablets but the ingredients and application seem identical.
Thanks for the quick response.
Jenks
Yes, but not on the U.S. site and not sold in the U.S.