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
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Gravity Filtering SystemOpen 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 AnywhereFitting 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 AgainThe 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 MissionSawyer 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
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Hollow Fiber MembraneSawyer’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 FilteringEach 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 ProtectionSawyer’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 TimesEvery 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. |
Wyatt pratt –
Works great filters alot of water quickly no wasting time squeezing water out a smart water bottle anymore must buy if you are into camping or hiking
Seth D. –
Used this for three days this past weekend, and overall I’m pretty happy with it. It was awesome and easy to fill when I was access to fast moving water, but slow moving water forced me to try and either submerge it or sort of use a scooping motion to get it even halfway filled. There HAS to be a better place for the inlet on a bag like this.The filtering itself was plenty fast for me (a good excuse to drop pack for ten minutes) and the water tasted great. It was nice to fill up at camp and know you had water on tap for cooking, cleaning, drinking, whatever.I took a pic of how I rigged it up most of the time. I would loop the leash of my pole through it and back onto the pole to hold it, then attach the other poles leash and lean them against something with a wide stance, made it super quick and easy.Much better than pumping and is pretty light. Definitely happy with it overall!
Michael H. –
We used this during a 3 week hunt trip. This water filter was easy to use and the water tasted fantastic from the creek!
EC –
I have always used the Katadyn pump filters, but I decided to go with a gravity system to save some time and energy at camp. This was perfect, and for a great price! In one minute and ten seconds I was able to filter a liter of water, so it would only take about 5 minutes to filter a full gallon.The only downside is trying to fill the reservoir from shallow or standing water. This is where pump filters have the advantage, since all you have to do is throw in the line and start pumping. However, when you consider the low cost and weight savings, this is by far the better choice. I carried a cheap plastic water bottle I purchased from a gas station just before the trip, and filled up that bottle with dirty water and bailed it into the Sawyer reservoir. This worked extremely well, and then I just collapsed the empty bottle and stuffed it into the lid of my pack. Even if you can’t find a place to hang the system, it’s very easy to screw the filter directly onto the bag and squeeze clean water into a drink bottle or bladder system.Save yourself some money, some ounces, and time by ditching the pump and let gravity do the work! I love my Katadyn, but I think it will collect dust for a long time since the Sawyer has a place in my pack now.Update 7/27/18: I just used this filter on a 3 night trip for a total of six people. We used the filter at least 3 times per day. During the 2nd day of use the filter slowed down considerably, but it was still easier than pumping. I would suggest back flushing the filter after every gallon when filtering for larger groups.Also, we used the sea to summit lightweight bucket to get water from a nearby lake, then dumped the water into the Sawyer bladder. This system worked great because we didn’t have to move the gravity filter and the water was easier to retrieve using the bucket.
A Adams –
It is very versatile and can be backwashed for extended use. The lifetime of the filter is 100k gallons. That will outlive me. I just wish the directions of use were better. I had to spend a hour online to really feel comfortable with the many configurations and safe use. I HIGHLY suggest this product.
Grown in Haiti –
Worthwhile. Easy to refill and lasts a while. I use them here in Haiti to filter water for community members in the rural mountainsides of the southeast region of the country
jen barlow –
It works well and is pretty compact.
Northwest Outdoorsperson –
I’ve used this on backcountry trips in Maine and Alaska and love it. Super easy to use, weighs nothing, easy to clean up, and you can get a high volume of water through it without having to do all the work yourself – just let gravity do the work.
EverestDoc –
Great device. Simple, cheap, lightweight
Brilliant, simple, lightweight device for making safe drinking water. Some people say slow, but I found the flow rate pretty reasonable – maybe 3 minutes for 1L. So no issue for us. No one unwell drinking this source of water, so thumbs up!
FTG… –
Bolsa de agua, manguera, boquillas y filtro.
Depósito para agua con diferentes conexiones para el filtro de agua de la misma marca, muy útil para cuando acampas por varios días .