The AutoFlow Gravity Microfilter represents the latest evolution of backcountry hydration, combining water filtration, storage and collection into a single, lightweight and pump-free system. With the latest Hollow Fiber technology and the power of gravity, the AutoFlow microfilter is fast as well—up to 1.75 liters per minute without a single pump stoke. 4-liter reservoirs allow you to filter large quantities at once making it perfect for groups, while quick and easy tool-free cleanings maintain high flow rates on extended expeditions.
| Effective against protozoa | Yes |
| Effective against bacteria | Yes |
| Effective against viruses | No |
| Effective against particulate | Yes |
| Effective against chemicals/toxins | No |
| Weight | 13.8 oz / 392 g |
| Width | 4 in / 10 cm |
| Length | 6 in / 15 cm |
| Filter media | Hollow Fiber |
| Filter pore size | 0.2 microns |
| Flow (L/min) | 1.75 liters per min |
| Cartridge life | ~1500 liters |
| Field cleanable | Yes |
| Field maintainable | Yes |
| Country of Origin | Made in Seattle, USA |
| Water Bottle Adapter | Yes |