MSR HyperFlow Water Filter
You'll be blown away by how fast you can fill a water bottle with the MSR HyperFlow™ water filter. See details
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You'll be blown away by how fast you can fill a water bottle with the MSR HyperFlow™ water filter.
You'll be blown away by how fast you can fill a water bottle with the MSR HyperFlow™ water filter.
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You'll be blown away by how fast you can fill a water bottle with the MSR HyperFlow™ water filter.
- Backpacker April '08: ''The HyperFlow is so fast and light it converted several editors who had sworn off filters in favor of chemical treatment.''
- Hollow fiber technology offers an extremely high flow rate of 2.75 liters per minute
- At just 7.8 oz., the HyperFlow is the lightest, most compact pump filter created by MSR
- Filter physically removes particles, protozoa, and bacteria down to 0.2 microns in size, including giardia, salmonella, cryptosporidia and others
- Pump is fully field maintainable and does not require tools for complete disassembly
- Included Quick-Connect™ bottle cap interfaces with MSR hydration products, Nalgene bottles and other containers with 63mm threaded openings
- Quick-Connect™ cap allows the pump to attach directly to the bottle or hydration bladder for the most convenient filling
- Included prefilter attaches to the end of the intake hose and blocks larger contaminants from entering the microfilter
- Prefilter floats near the surface of the water to avoid intake of contaminants located at the floor of your water source
- Over-molded end caps on the pump provide an excellent grip and pumping comfort
- Adapt the HyperFlow pump into a pump-free gravity filter with the HyperFlow Gravity kit, sold separately
Please note: MSR products can only be shipped to U.S. addresses.
Made in USA.
Item 767564
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MSR HyperFlow Water Filter
Loading Ratings & Reviews...
MSR HyperFlow Water Filter is rated
out of
5 by
23.
Rated 4 out of
5 by
TrailRebel from
The Little Engine that Could
Ive taken this filter on overnighters, day trips, and weeklong backpacking trips. It has failed me a couple of times with the backflushing, the usual complaint on this product. Upon inspection at home and several trial runs i realized that the backflushing problems are all mostly human error. It filters water fast although just slightly hard to pump (just barely hard actually.) A few tips though:
. Always Filter with the prefilter on no matter how clean the water looks.
. Attach the prefilter to a trekking pole or some heavy item to keep it from floating all over the place or rolling over and sucking air in.
. Setting it up for backflushing is a delicate matter, once you reverse the valves you have to be really careful not to have air in the chamber before you backflush if you draw even a tiny bit of air into you have reassemble it. It is a complicated procedure but once you get it right its easy gliding.
Date published: 2014-03-26
Rated 5 out of
5 by
Dave OR from
Super product
I've used a range of MSR and other brand water pumps but this one clearly outshines the pack.
My use, over the last 3 years, has been to purify water during numerous back country outings (some up to 10 days). The water I pump is clear and appears potable so the pump is used to avoid ruining a good trip. I do not have experience using this pump in silty or high organic content water. I perform regular maintenance and the pump and filter have held up surprising well.
Maintenance is a breeze, pump volume is the best I've run across. I bought a spare filter but there is no need to change the original out, though I"ve pumped between 75 and 100 liters so far.
Finally, the carry sack just blew out along a seam and the kind folks at MSR promptly sent me a new sack without charge.
My hiking buddy has one also and dittos my sentiments.
Date published: 2014-03-26
Rated 5 out of
5 by
tinytowers from
Great filer, great service.
This filter has been great so far. I see a few people have complained about small parts that are easily lost, which is somewhat true considering I misplaced one of the two small check valves. However, I called MSR and they sent one in the mail to me free of charge. Doesnt get any better than that.
Date published: 2014-03-26
Rated 4 out of
5 by
PK3 from
Light and convenient
I own several of these, and love the product. Some reviews talk about the pre-filter screen not staying down, I have not had this problem. The pre-filter screen has a velcro strap around it, we simply loosen the strap, and insert a small rock or stick to keep it in place. It is easy to prime, and lives up to the name of Hyper Flow. We have only used it in fairly clear, running water; and have never had a clog. As long as both of the valves are in the correct position/direction of flow, and the hose is not kinked, it is easy to pump. We usually fill either 4 liter or 6 liter dromedary bags, and usually two consecutively each time; they both are filled in a relatively short amount of time too. There is no plastic after taste (depending on the container you pump in to) or iodine taste that you get from other filters either. This way, we never run out of good tasting, clean cooking/drinking water in camp, or on the trail. We flush it with purified water or filtered tap water when we return home from our outings. Remember, there are two check valves that need to be turned to flush the filter. Also, take it very slow on the filter flush, you are basically forcing water through the filter "against the grain". Love this filter and flow rate! Happy camping!
Date published: 2014-03-26
Rated 1 out of
5 by
MichaelKnoll from
Refuses to be back-flushed
When new, this filter was much lighter and much faster than my Katadyn Hiker. But after filtering roughly 10 liters, it clogged almost completely. Since then, it has adamantly refused to be backflushed.
I have watched the how-to-backflush video three times, I tried backflushing numerous times, both in the mountains and at home. When I try to backflush, the pump acts as though airlocked. It refuses to draw water into its outlet end and through the filter element.
I'm hoping there's simple solution and will contact the manufacturer and maybe exchange this unit in case it's defective, but I'm now so wary of malfunctions that I'm reluctant to bother taking this on a climbing trip.
If you buy this filter, I recommend you (1) practice backflushing at home several times before taking it into the back country, (2) back flush it BEFORE it clogs, (3) consider packing spare filters, and (4) pack a backup purification system such as Pota Aqua.
Date published: 2014-03-26
Rated 1 out of
5 by
ForestRebel from
Worst filter ever, misleading labeling.
My husband and I bought this for our 200+mile hike of the John Muir Trail this summer. We liked the lightweight small filter, apparent ease of use and previous good experiences with MSR quality. We tested it at home, made sure we knew how to do maintenance etc as the manufacturer required. At first we told ourselves that the daily back flushing would not be a big deal. Well let me tell you it was a big deal. Also, the pre filter silt screen only works with one side down. Yeah. How many people never pump from moving water that takes the thing and spins it all around. Terrible design on MSR's part. Not that much slower than other filters really but the big deal breaker was that you literally have to disassemble the stupid thing into 4 small parts, reverse some valves, reassemble it, back flush he filter cartridge and then reassemble it back. A very annoying thing to have to do in the wilderness where everything is dusty, etc. and you have to do it after about 8 liters. The worst filter money can buy for anything longer than a day hike!!!
Date published: 2014-04-16
Rated 1 out of
5 by
Rand from
Recall this product!
I have a lot of respect for the bomb-proof durablity of MSR products. The Hyperflow is an unfortunate exception and should be recalled immediately to preserve the company's good reputation. I bought the Hyperflow to lower the weight of my pack for the John Muir Trail. I studied the manual and the Youtube videos and carefully backflushed the filter each day. But after just three days, the pump became almost impossible to push - but I was stuck with 13 days still to go before I got back to civilization. I have talked with many others who have had the same problem so I do not think this was a case of "user-error". I have always relied on MSR when I go to remote areas with harsh conditions. This time the company has let us down. They need to get this filter off the shelves until they can redesign it.
Date published: 2014-03-26
Rated 1 out of
5 by
Ken Cross from
plugged up
I have used this filter for 3 nights out before it was unusable. I had purchased it because it could be backflushed. In order to backflush you just reverse the 2 check valves and pump clean water. Having reversed the valves I'm afraid I'd break it if I pressed any harder on the pump. The water I had been filtering looks clear, but it plugged up quickly. This is the worst filter I've had from a longevity standpoint. Over the last 20 or so years I think I've owned 5 other filters and used several more that weren't my own. I'll return it in the am.
Date published: 2014-03-26
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