A lightweight, robust solution for filtering large quantities of water, Sawyer’s Gravity System with Dual-Threaded MINI filter is ideal for backpacking, backcountry camping, and emergency preparedness. Available in two models, the 1-Gallon Gravity System (SP160) comes with one bag and a MINI, while the 1-Gallon Dual Bladder Gravity System (SP2160) comes with two bags (one for dirty water, one for clean) and a MINI. The Sawyer dual-threaded MINI water filter weighs just 2 ounces, fits in the palm of your hand, and is rated to 0.1 micron absolute filtration — removing 99.99999% of all bacteria, such as salmonella, cholera, and E.coli, and removing 99.9999% of all protozoa (such as giardia and cryptosporidium). The MINI also filters out 100% of microplastics. With threads on both sides, you can screw the flip top cap onto the MINI for easy on/off functionality while filtering. Convenient and easily packable, this single- and dual-bag gravity system doesn’t require any pumping and is perfect for camping, hunting, fishing, scouting, disaster relief, and emergency preparedness kits, as well as on adventure travel excursions where potable tap and bottled water are not easily carried or safe to drink. The 1-gallon bladders feature a wide mouth cap that allows for fast and easy filling, as well as a convenient carry handle. To set up a gravity system, first fill the reservoir with water from any source (a lake, stream, pond, glacier, kitchen faucet, etc.). Hang the bag — from a tree, the back of your pack, or hold it up with your hand — and connect the MINI to the included hose and let gravity do its work. Water will flow through the MINI to produce fresh, clean water for drinking and cooking. The SP2160 Dual Bladder Gravity System includes a second “Clean Water” 1-gallon reservoir to hold your filtered water. The SP160 package includes a dual-threaded MINI water filter, 1-gallon bladder, cleaning plunger, and gravity hose with adapters. It also comes with Sawyer’s Cleaning Coupling accessory. The SP2160 package includes a dual-threaded MINI water filter, dirty water bladder, clean water bladder, tube adapter with shutoff clamp, inline adapters, tube adapter, long tube, hanging strap with S-biner, cleaning plunger, cleaning coupling, flip top cap, and hose guide. Since 1984, Sawyer has used technological advancements to create products that keep you outdoors — from the backcountry to the backyard — including insect repellents for both skin and clothing, water filters for camping and emergencies, and sun protection.
From the manufacturer
About Sawyer
Since 1984, Sawyer Products has offered technologically advanced solutions for protection against sun, bugs, water, and injuries — everything from first aid kits developed for wilderness to point-of-use water filters that filter contaminated water to levels cleaner than U.S. bottled water.
Sawyer Single Bag Gravity Water Filtration System with 0.1 Micron Water Filter
Superior Filtration, Maximum Versatility
Ideal for backcountry trekking with family and friends or keeping on hand for emergencies, Sawyer’s Single Bladder Gravity Water Filtration System provides an easy-to-use, portable, and high-flow gravity-based water filtration system that’s great for filtering large quantities of water.
It comes with a Dual-Threaded MINI 0.1 micron water filter, which enables you to directly fill water bottles, soda bottles, hydration packs, and more.
- Removes 99.99999%* of all bacteria, such as salmonella, cholera, and E.coli
- Removes 99.9999%* of all protozoa, such as giardia and cryptosporidium
- Removes 100% of microplastics
- Filter rated up to 100,000 gallons
- * Independent testing by Laboratory Hydreion, LLC.; Microbiological Report S05-03
- † Independent testing by Aquadiagnostics Laboratories and Envirotek Laboratories (S1 – 2512B-12512C; S3 – 12514-12514A), 2017
Gravity Filtering System
Open the wide mouth cap and fill the bag with water from any source — lake, stream, faucet, etc. — and connect the included tube between the bladder and the Dual-Threaded MINI.
After filling, hang the reservoir with the MINI below it from a tree, the back of your pack, or simply hold it up with your hand. Water will flow through the MINI to produce fresh, clean water for drinking and cooking.
Filtered Water Anywhere
Fitting in the palm of your hand, the Dual-Threaded MINI gives you several ways to access clean water. With threads on both sides, you can attach the flip top cap onto the MINI for easy on/off functionality while filtering to control water flow.
The filter can also be attached onto most disposable water or soda bottles, or attach it inline to tubing between a hydration pack and bite valve.
Filter Again and Again
The Dual-Threaded MINI can be cleaned and reused almost indefinitely with no expensive cartridges to replace… ever.
When water flow begins to diminish, simply perform a backwash to restore up to 98% of the filter’s flow rate and enjoy fresh, clean water wherever you roam.
Sawyer’s International Mission
Sawyer believes everyone deserves access to clean water — from hikers in the backcountry to indigenous people groups in the remotest corners of the world.
For over 10 years, Sawyer has been working with a variety of charities and churches who are on a mission to make a long-lasting impact in the lives of those around the world without access to clean drinking water.
High Performance Water Filtration
Hollow Fiber Membrane
Sawyer’s water filters are comprised of tiny hollow fiber membranes that allow water to enter their core through tiny micro-pores.
Thicker fiber walls combined with a smaller inner diameter make Sawyer fibers 75% stronger* than typical hollow fiber membranes, giving you a fast flow and enabling the filter to be continually backwashed forcefully to restore up to 98% of the original flow rate.
* Clean Water Institute of Calvin University; July, 2018
0.1 Absolute Micron Filtering
Each Sawyer water filter features 0.1 micron absolute filtration, meaning there is no pore size larger than 0.1 micron in size.
This makes it nearly impossible for microplastics, harmful bacteria, protozoa, or cysts like E. coli, Giardia, Vibrio cholerae, and Salmonella typhi (which cause Cholera and Typhoid) to pass through.
Fiber Protection
Sawyer’s hollow fiber membranes are fully encased and sealed to keep them protected. When fibers are not enclosed, physical damage of exposed fibers could allow harmful pathogens to pass through.
Tested 3 Times
Every Sawyer filter is performance tested three separate times during the manufacturing process for your protection.
Testing occurs after the fiber element construction and twice after casing assembly to ensure no harmful pathogens leak through the sealed case or internal O-rings.
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