well, those who did their NS know about Puritabs..
how about this instead?
The SteriPEN
Adventurer
The SteriPEN Adventurer is the smallest, lightest weight and most
technologically advanced UV water purifier on the market. Half the
size and weight of the highly acclaimed SteriPEN classic UV
purifier, the Adventurer boasts the same efficiency and performance
as its award winning sibling.
The SteriPEN Adventurer can be used with an optional solar
recharger case, which makes it ideal for extended excursions and
travel. The Adventurer is also perfect for ultralight backpackers
who want a faster, more effective and safer alternative to chemical
treatments.
Fast - Up to 160 times faster than chemicals.
Light - One third the weight of most pump filters and
purifiers.
Easy - Push-button operation. No pumping. No chemicals.
Effective - Proven and safe UV light technology destroys viruses,
bacteria and protozoa.
Shown to destroy in excess of 99.9999% of bacteria, 99.99% of
viruses and 99.9% protozoa.
Effective against outdoor microbes (e.g., viruses, bacteria,
giardia, cryptosporidium), household germs (e.g, bird flu,
influenzas, e. coli, salmonella, staph, strep); travel risks (e.g.,
diarrhea, dysentery, hepatitis, Legionnaires' disease); bio-terror
weapons (e.g., anthrax, botulism, smallpox, typhoid).
Weight: 4 oz
