How to Choose a Water Filter or Purifier
Sale Ends Sep 1
MSR AutoFlow XL Gravity Filter - 10 L
Sale Ends Sep 1
$96.89Compared to $129.95Save 25%
Great for car camping, horsepackers and other backcountry groups, the 10-liter MSR AutoFlow XL gravity filter offers pump-free filtration—all while you set up camp, prep dinner or relax.
- Extra-large AutoFlow gravity filter system delivers 10 liters of clean water fast; one 10-liter fill supplies 2 people with a day's worth of water
- Large capacity means fewer trips to the river to haul the water you need
- Similar in packable size to a 4-liter system, the AutoFlow XL filter's durable, flat base doubles the water volume and weighs just 12 oz.
- Operation is simple: fill the 10-liter collection reservoir with dirty water, connect it to the filter with the quick-disconnect fitting and let the water flow
- Efficient, hollow-fiber technology filters up to 1.75 liters per minute
- Meets NSF protocol p231 for removal of bacteria (99.9999%) and protozoa (99.9%) from beginning to end of filter life in "worst-case water"
- Constructed with a rugged, 3D film reservoir with RF-welded seams and a 1,000-denier flat base that resists wear and tear
- Field-maintainable design has a sediment trap in bottom of bag; filter is easily cleaned on the fly—no tools required
- Separate hang strap and bag clip allow for easy hanging and maximum convenience
Made in USA.
View all MSR Gravity Water Filters| Best Use | Backpacking Camping |
|---|---|
| Filter Type | Gravity |
| Filter Medium | Hollow filter |
| Removes/Destroys | Protozoa And Bacteria |
| Output | 1.75 liters per minute |
| Housing Material | ABS plastic |
| BPA Free | Yes |
| Field Cleanable | Yes |
| Dimensions | 11 x 7 x 3 inches |
| Weight | 12 ounces |
Buying Advice
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Canoe27
Minnesota
Worked well for large group.
1 week ago
My group of nine used this filter for four days in the BWCA, and it worked very well. All told, we probably filtered at least 100 liters of water during that time, and although the flow rate decreased over time, it never became too slow. I am giving the AutoFlow XL Gravity Filter four stars rather than five only because the method of backflushing described in the manual does not work. Instead, we used a syringe from a different filter to backflush this filter, which was very successful. MSR should provide a syringe with this unit.
Age:35–44
Yes , I recommend this product
ellie
Very Slow Flow
11 months ago
First time using the Autoflow Filer for a group back country trip (4 people). Previous experience with the Platypus with no issues. The flow was very slow as a band new filter. We found unscrewing the cap on the Nalgene helped a bit but by the end of the 3 day trip it was trickling. If you dont have the extra dromedary bag that you need to purchase separately you cannot back filter as instructed for maintenance so this was not an option on the trip. Tried back filtering with my nalgene attached and no luck. Not sure what this is not sold as a whole package with the 2nd clean bag (like the platypus brand) if it is needed for cleaning and maintaining the filter. Disappointed.
Originally posted on a Cascade Designs brand site
campingdude1
Michigan
Great Filter, 10/10
5 months ago
I am not sure why this got such a bad review. I have 2 of these filters and have used them ( and replaced the filters a couples times of course) over about 5-6 years. for about 20-30L a day in showering, drinking and cooking water for a camp team of 2-8 (more usually around with a couple dogs) and they shine. I have 4 dromedary bags, 2 of them black sea to summits with the shower thingy, 2 black msr's and i just keep switching out the bags 2x a day, takes 90 sec to fill and switch it, and then maybe 20 min to filter most of it, im guessing on time but it doesnt take long. We leave the bags in the sun to shower with warmer water when the suns down, and have endless water for drinking and cooking and cleaning chores in camp. We filter lake michigan directly with this for years, no issues, no sickness, no funny tastes. have also filtered most of michigans good camping rivers with no issues, several other inland lakes. canada as well. no issues. i recommend this filter to anyone who doesnt need the viral filtering of the guardian gravity (which i have an is a great filter if your water is questionable)
Age:35–44
Yes , I recommend this product
Beth
California
Great if you follow the directions!
2 months ago
I've been using this filter system for 4 years now, and it's awesome. Durable, easy to use, and fast. The one caveat is it's easiest to use a Nalgene to back flush it fairly often (per directions) to keep operation optimal. I always take a Nalgene when I backpack, so it's not a problem for me, but if you don't you might need to find some sort of workaround.
Age:45–54
Yes , I recommend this product
Confidential Trail Name
Finicky filter
1 year ago
I have used this filter on a couple of 6-day long backpacking trip and observed how they hold up for several trips over the course of two summers. To get this to work correctly, it takes a lot of effort. You need to figure out how to purge air out of the line, avoid air pressure backup, and to backflush. If you get it working well, it will fill a liter bottle in less than 2 minutes. Brand new with tap water it is about 1 liter per minute. When it is not optimized it can take 5 or 6 minutes per liter or longer. Getting the 10 L dromedary bag to go along with this allows you to do other things while filtering, otherwise you are constantly swapping out smaller containers. After several trips, the water bags started to show some serious wear and tear. Also, it does not filter out viruses, which is ok in most places in the US, but could be a serious problem in some places. Nevertheless, this is not a bad option for hiking with big groups (e;g.,12 persons). There may be better options for groups, but probably for a higher price.
Timtim
MSR
6 days ago
Great product, used this set up on my last couple of BWCA float trips. You can back flow using a Nalgene, always bleed your line. User error, learn how to use your gear before taking it into the field.
Michael G.
2 months ago
Originally posted on a Cascade Designs brand site