MSR Hyperflow Microfilter

Why did MSR's Hyperflow Microfilter win the 08 Backpacker Editor's Choice Award? It's super small (7 x 3.5in), super light (7.4oz), and it pumps three liters per minute.

Backpacker April '08: ''The HyperFlow is so fast and light it converted several editors who had sworn off filters in favor of chemical treatment.''. You'll be blown away by how fast you can fill a water bottle with the MSR HyperFlow™ microfilter. 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.

The Hyperflow Microfilter by MSR is packaged so small and its so easy to use, it is going to change the way you get your water in the backcountry. Ultralight at just 7.4 oz, this amazing filter can pump more than 3 liters per minute or one liter every 20 strokes. It is super small so it can fit in your pack, even when its packed to the gills with gear, and its incredibly convenient with a quick connect bottle adapter that lets you filter water directly into a variety of containers.