Source Convertube + Sawyer Filter

Convertube + Mini Sawyer. Turns almost any bottle into a hydration system.

How it works : As water passes through the side walls of the filter micro-fibrous tubes, harmful bacteria and protozoa are trapped in the outer walls so you can be confident your water is safe to drink

Long lasting : Filter up to 100,000 gallons from freshwater lakes, rivers or streams. Sawyer filters are so robust, they can be backwashed and reused over and over. No replacement cartridges needed.

Efficacity: Removes 99,99999% of bacteria (Salmonella, cholera and E.coli) and 99,9999% of protozoa (cryptosporidium and giardia), exceeding EPA recommendations for removal rates. No chemicals or batteries required.

The Convertube adaptors:
- Sigg (42mm)
- Nalgene (63mm)
- Evian (24mm)
- Standard PET (28mm)