MSR HyperFlow Backcountry Water Filter
- 3+ liters per minute, one liter every 20 strokes
- 99.9999% bacteria, 99.9% protozoa per NSF P231
- 7.8 oz (221 g)
- Hollow fiber cartridge, field maintainable
- 500 ppm max TDS, **100 F** upper temperature
- 3-year limited warranty
Updated 5 days ago · Based on the Amazon listing and published specifications, not hands-on testing.
A fast, light hand pump filter for backpackers who want to fill bottles quickly from shallow sources. It handles bacteria and protozoa only, and spare cartridges and seal kits are sold separately.
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ASIN: B0CQRTVNPKCategory: Camping Water Filters
Styles Available
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Overview
A hollow fiber cartridge inside the MSR HyperFlow strains out bacteria and protozoa as you pump, and a Quick Connect adapter fills bottles and MSR hydration packs directly. Field maintenance restores flow over the life of the cartridge.
Pumping speed and low weight make it a strong choice for refilling a group of bottles at one stop. Virus removal is not claimed, and the seals kit and spare cartridges are sold separately.
Who it's for
Backcountry hikers who fill several bottles at each source and value a light pack will get the most out of it. Travelers drinking from municipal water abroad need a purifier that addresses viruses.
Pros and cons
- High pumping speed per stroke
- Light and compact for backpacks
- Fills bottles directly with adapter
- Field maintainable to restore flow
- Virus removal not claimed
- Spare cartridge and seal kit extra
- Hollow fiber can clog in silty water
Performance notes
Flow depends on how clean the hollow fiber stays, since silt and sediment slowly block the fibers. Field maintenance clears them and brings the pump rate back up. The protection claim covers bacteria and protozoa in worst case test water over the full filter life.
Specifications
| Brand | MSR |
|---|---|
| Dimensions & fit | |
| Item weight | 7.8 oz (221 g) |
| Item Dimensions L x W x H | 7 x 3.5 x 3 inches |
| Capacity & performance | |
| Maximum Flow Rate | 3+ liters per minute |
| Upper Temperature Rating | 100 F |
| Power & efficiency | |
| Power Source | Manual pump |
| Included components | |
| Included Components | Microfilter, Quick Connect Bottle Adapter, Hoses, storage bag |
| Warranty & support | |
| Supported Water TDS Level Maximum PPM | 500 |
| Warranty Description | 3-Year Limited Warranty |
| Other details | |
| Purification Method | Hollow Fiber Membrane |
| Country of origin | USA |
| Removal rating | 99.9999% bacteria, 99.9% protozoa |
| Test standard | NSF Protocol P231 |
Frequently asked questions
How big is the MSR HyperFlow when packed?
It measures 7 x 3.5 inches per the bullets, with specs listing 7 x 3.5 x 3 inches, and weighs 7.8 oz.
Which bottles work with the MSR HyperFlow adapter?
The Quick Connect adapter fits all MSR hydration products and other wide-mouth bottles.
Are replacement cartridges included with the MSR HyperFlow?
No. Field maintenance kits for seals and replacement cartridges are sold separately.