Sawyer 1 Gallon Gravity Water Filter System - 4 Liter
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Weighing only 8.3 oz.., the Sawyer 1 Gallon Gravity System is a quick and convenient way to filter enough water for the whole group, whether you're in base camp or a remote backcountry site.
Shop similar products- 0.1-micron filter physically removes 99.99999% of all bacteria, such as salmonella, cholera and E.coli; removes 99.9999% of all protozoa, such as Giardia and Cryptosporidium
- Filters 1 gallon of water in under 7 minutes (depending on water and filter conditions)
- With threads on both sides, you can screw push-pull cap onto Mini for easy on/off functionality when filtering; also compatible with the cleaning coupling for backwashing
- Bladder has a wide mouth for fast, easy filling and a convenient carry handle
- Filter will also fit the threads on Sawyer Squeeze reusable water pouches and most bottles of water that you buy at a grocery store
- Use the included syringe to backflush the filter to maintain a high flow rate
- Avoid freezing this filter; freezing may ruin the hollow-fiber membrane
- Includes: dual-threaded Mini filter, 1-gal. water bladder, hose, push/pull cap, cleaning coupler, connector clip and cleaning syringe
Made in USA.
View all Sawyer Gravity Water Filters| Best Use | Multisport |
|---|---|
| Filter Type | Gravity Squeeze |
| Filter Medium | Hollow-fiber membrane |
| Removes/Destroys | Protozoa And Bacteria |
| Output | Up to 0.7 liters per minute |
| Housing Material | ABS plastic |
| BPA Free | Yes |
| Field Cleanable | Yes |
| Weight | 8.3 ounces |
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Filter vs System
This is the best filter ever for adaptability!!! The Dual Treading is the key. I can use almost any water bottle or bag as a clean or dirt. It's packed in a Nelgene Bottle with all the tubing w/ quick-connects & adapters, a cup, SteriPen; Water Bottle Prefilter & a 2Lt DromLite on top, all in a 10x4 H2O Molle Pouch. & 2 Squeeze Pouch:-) Now Sawyers Gallon Bag feels like it's a Beta. Love the 63mm top cap & 28mm bottom cap. Again great for adaptability. But it does not pack as nice as I want. Put the 28mm bottom cap on a Dromedary Bag & it word be perfect. FYI: The black plastic part is to lay the bag on a table to guard the tube from the edge.
DON'T BUY THIS ITEM.
PRO: It seemed perfect. A no-frills solution with a high quality filter. Compatible with regular disposable water bottles- what a great idea. CON: The quality and construction is where this item falls down. The plastic pieces are rigid and will break. It was very difficult to open the spigot. This is a highly disposable item with a short lifespan. WHAT TO DO? I bought a Platypus instead. The design and build quality is excellent. Soft surgical rubber construction. I used this on my last hiking trip and was so impressed, I had to get my own. Its worth the extra money.
Not the best choice.
I lead trail crew work trips and have used another gravity water filter system for years as our in camp filter system, the other filter was a bit pricy so I thought I would try the Sawyer 1 gallon gravity filter system. The Sawyer filter seems to work fine but the rest of the system is very poor quality, the fittings all leak, the water bag is bulky and difficult to fill to full capacity from a stream, and there is no inline shut off. I am now using the old system with the Sawyer filter, I don’t recommend the rest of the Sawyer 1 gallon filter system, it is junk, and instead I would use a 3 liter [other brand bag] with the Sawyer filter, in line, with a shut off on the end. The Sawyer filters seem to be very good for the price; no one on our crews has ever gotten sick from the water. Don’t waste your money on the gravity system.
Great gravity filter on a budget
I bought this to use for a four-day backpacking trip with two buddies and my dog, planning for it to be our main water source for the trip. I had trouble finding any gravity filter systems that were within my budget, so I jumped at the chance when I found the Sawyer system. It is lightweight, easy to assemble and use, and filtered several gallons of water over the course of our trip with no problems. The filter was also very easy to clean with the included plunger once we got back to a clean water source. Not quite as fast or convenient as a two-bag system but it outperformed my expectations considering the price. I think I'll be purchasing another bag to make things a little easier, otherwise I was very pleased with my purchase.
Good concept, poor design
This was my first try with a gravity water filtration system. While I like the concept of the gravity system, this particular model is just poorly designed and not well thought-out. Here are some of the problems: (1) unlike most other systems that use a bag with a large open end to fill with water, this bag has a small opening and the bag collapses when you submerge it, so it will not fill. I had to fill a separate pot with water and pour it into the Sawyer bag, (2) the pull spout on the end of the filter is very hard to pull and requires two hands. My wife had to use her teeth to pull it open! (3) there are too many unattached small parts like caps that you have to keep track of. They don't use attach clips or ties like most other systems, (4) filtration rate is quite slow, especially if you don't have a high branch to hang the bag from, (5) there is no hanging strap, just a large handle that may not allow a tree branch to fit through. I plan to switch to the Platypus gravity filtration system.
Better than expected
The assembly was very easy. Good capacity and not heavy when lifting. The flow is not as fast as expected, maybe I am not doing something right. It would be nice to have some string or rope to be sent with the package since you need to hang it somewhere while filtering. I also notice that it does not fully drained when "done".
Unimpressed
The unit came with zero instructions. Now some things are clear, but others could use some documentation. Like how long before the cartridge should be changed? The unit came with one hose when it clearly needed two. Am I supposed to cut the included hose? I got some cheap hose from another product, but that's a big minus to me. Also what's with the little black plastic part? It clips onto the outflow of the big bag but seems to do, well, nothing. Unsure how well it purifies water, but what I've seen so far does not impress me.
Reliable and great for the price
I purchased this filter system for a long canoe trip down the Colorado River last month, and I was impressed with how well and how easy this system worked. I was able to filter about dozen gallons or so over the trip without any issues.
Good Value
Excellent value for the price but I think it might last a little longer if the reservoir was made of a somewhat softer material. It's quite brittle.