Fast Backcountry Filtration
4 Liter Gravity Filtration System
A time tested favorite, Sawyer’s 0.1 Micron Gravity Filtering System simplifies backcountry hydration needs. This versatile, safe, and highly effective bag system is practically hands free. Just hang the system from a tree or any source off the ground, and gravity does all the work quickly — filtering 2 liters of water in as little as 90 seconds.
Packing Sawyer’s Point ONE filter mechanism (rated to 0.1 micron absolute filtration), the Gravity Filtering System removes 99.99999% of all bacteria, such as salmonella, cholera, leptospirosis and E.coli, and removes 99.9999% of all protozoa (such as giardia and cryptosporidium).
It comes in two sizes (2- and 4-liter) and in two configurations — either a single bag (for filtering into your own container) or a dual-bag package (one for dirty water, one for clean water).
How It Works
Gravity Does the Work
Take the gray reservoir and fill it up with water from any source — lake, stream, faucet, etc. After filling, hang the gray bag from a tree, the back of your pack, or simply hold it up with your hand. The color-coded system (grey goes with grey, blue goes with blue) makes filtering easy. Just connect the tube into the gray reservoir and clip the other tube end into the grey end of the Point ONE filter.
Start filtering water into either the blue reservoir (included in two-bag system) or directly into another container, and you’ll have 2 liters of fresh, clean water in about 90 seconds — ready to drink, cook with, or fill water bottles.
With the two-bag system, you can even use the blue reservoir as a hydration pack with the included drinking tube and a bite valve (sold separately).
0.1 Micron Absolute Filtration
Our water filters contain a high number of tiny ‘U’ shaped hollow fiber micro-tubes that trap contaminants while allowing decontaminated water to freely pass through at a high flow rate — eliminating the need to store water and reducing the possibility of water contamination after the filtration process.
The Sawyer Point ONE (the filtering mechanism for the Gravity Filtering System) is certified for 0.1 micron filtration, meaning there is no pore size larger than 0.1 micron in size. This makes it impossible for harmful bacteria (like salmonella), protozoa, or cysts like E. coli, Giardia, Vibrio cholerae, and Salmonella typhi to pass through the filter.
All Sawyer water filters meet or exceed Environmental Protection Agency (EPA) recommended removal rates.
A Lifetime of Clean Water
The Point ONE’s filtering membranes are sturdy enough to withstand backwashing using the included syringe, restoring up to 98.5% of the filter’s flow rate.
The Point ONE can be cleaned and reused almost indefinitely with no expensive cartridges to replace… ever. We recommend backwashing and sanitizing the filter after every outing for optimized use.
Fully field maintainable, the Gravity Filtering System includes a faucet adapter for a more thorough backwash when you get back home.
Sawyer 2 Liter Complete Water Treatment System
Available at:View All
- 4-Liter Nylon Dirty Water Dispenser
- 4-Liter Nylon Clean Water Storage Vessel with High Flow Dispensing Cap
- Sawyer 0.10 Absolute Micron Water Filter
- Faucet Adapter
- Drink Tube
- Cleaning and Maintenance Instructions
|Filter Material:||0.1 Micron Absolute Hollow Fiber Membrane|
|Removes:||Bacteria, Protozoa, and Cysts|
|In Packaging Dimensions:|
Filter Material: Hollow fiber
Removes: Bacteria, protozoa, E. Coli, giardia, vibrio cholerea, Salmonella typhi, leptospirosis
Filter Life: Lifetime Warranty
Compatibility: Complete system, inline
Complete Weight: 16 oz
Package Weight: 12 oz
Recommended Use: Emergency preparedness, hiking, backpacking, ultralight backpacking, camping, paddling, group camping
Product #: [SP184]
We recommend backwashing your filter when you flow rate begins to diminish, before prolonged storage, and when you are ready to start using your filter again. Backwashing your filter after storage is a great way to re-wet the filters and restore the flow rate before use.
The Sawyer filter removes taste that comes from bacteria, dirt, and green matter.
The Sawyer filter does NOT remove iron, sulfur, other chemicals, or simple compounds. Taste can be masked by using flavor additives like Gatorade or crystal light (filter needs to be cleaned immediately after using them).
The Sawyer filters are not made with charcoal. While other portable filters have charcoal, they lack in amount of media and adequate dwell time. Therefore, they only remove small amounts of heavy metals, pesticides, etc. (when used in real life applications). Try using better sources of water, if possible.
We have independent lab tests using EPA protocols and information about our filters and their warranties available on our Downloads Page.
The Sawyer Squeeze Filter
The Sawyer Squeeze Filter can be used in conjunction with a hydration pack. Please see video Sawyer Squeeze with Hydration Pack using Inline Adapter and Sawyer Squeeze with Fast Fill Adapters.
The Sawyer Squeeze Filter with Water Bottles
The Sawyer Squeeze Filter can also be used on water bottles when you are unsure whether or not it is safe to drink the water.
The Sawyer Inline Filter
This convenient filter can be used as an inline filter on a hydration pack, a pre-filter for an existing pump system, with the provided faucet adapter, or with a gravity bag.
Flow rates vary depending on how clean the filter is and how well you cleaned the filter. Altitude also affects the flow rates (the higher you go the slower the flow. Also, the PointZEROTWO™ filter flows much slower that the Point ONE.
Before initial wetting
Filter is safe from freezing temperatures if it has never been wetted.
After initial wetting
While there is no definitive way to tell if a filter has been damaged due to freezing, Sawyer recommends replacing your filter if you suspect that it has been frozen.
If you are in freezing temperatures, we recommend that you store your filter in your pocket or close to your person so that your body heat can prevent freezing. THERE IS NO WARRANTY FOR A FROZEN FILTER.
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