This gravity fed system offers a high-flow capacity. Fill the unfiltered water reservoir, raise, and hang it. The output hose on the side of the water reservoir allows sediment to settle, reducing line blockage and the need for flushing. Filtered water is collected in a bottle with a push-pull cap, ready for use. The fibres in these filters are slightly more brittle than ceramic filters, and somewhat more susceptible to damage from impact. The cartridge is encased in a protective rubber shell, and drop-tested to 7 feet, but consider carrying a spare cartridge on long trips, as they are small, light, and inexpensive enough to carry a backup.
- Reservoir is made of silver ion-treated polyethylene film that doesn't pick up tastes.
- Silicon tubing.
- Filters 2L of water in less than 3 minutes.
- 2L version is light enough for backpacking, but practical for basecamps.
- Hollow fibre filter has a high surface-area that allows water to flow quickly through a 0.2 micron effective pore size.
- Removes 99.99% of all bacteria and protozoa.
- Nominal 1500L filter life is for clear water, turbidity wiil reduce the useful life of any filter.
- Do not allow the cartridge to freeze after initial use.
- Quick-disconnect valve automatically cuts the flow of water when the hose is disconnected.
- Clip-style shut-off valve on output hose between reservoir and bottle.
|Ideal for||Camping and hiking|
Water can be treated using various types of filters, chemicals or non-chemical purification methods, or a combination. Filters on their own will not remove viruses as they are too small.
|Hollow fibre technology|
|Dimensions||18.8 x 8cm|
The life of the filter cartridge is based on the quantity of water you can treat before the cartridge is no longer effective. This does not apply to battery operated or chemical filter systems.
A 0.5 micron or smaller filters protozoa and some large bacteria; 0.2 micron or smaller filters smaller bacteria such as campylobacter.
Effective against protozoa
Protozoa are larger than one micron and include cryptosporidium and giardia.
Effective against viruses
Most viruses are in the 1.0 micron size range, but they can be as small as 0.002 microns.
Effective against particulate
Particulate consists of very small bits and pieces such as dirt or bugs.
Effective against bacteria
Bacteria can cause illnesses such as diarrhea and dysentery and are about 1.0 micron in size, although some can be as small as 0.2 microns.