MSR HyperFlow Microfilter
MSR HyperFlow Microfilter… lighter, faster, better! Pumps up to 3 liters per minute! Now here’s a Pump that delivers pure, fresh water on demand… and it only weighs a shade over 7 ozs. Featuring an ergonomic design, small size, and tool-free maintainability, perfect for a day hikes and weeklong excursion alike. The 411: Ultra-small: just 7 x 3 1/2″… perfect for when space is at a premium; Removes bacteria, protozoa (including crypto and giardia), and particulates; Includes Quick Connect Bottle Adapter; Prefilter floats near the top of your source, avoiding bottom particles and helping prolong filter life.; Order yours today! MSR HyperFlow Microfilter
User Ratings and Reviews
1 Star Not Ready For The Back Country
I just returned from a 7 day trip to the Sky Lakes Wilderness in Southern Oregon. Three of us had purchased MSR Hyperflow filters for the trip. We are all planning on returning them. Each of us had done some brief testing at home and all seemed well, but in the field all three were almost useless by the end of the week. One failed on the first day. It pumped 3 or 4 liters as advertised, but quickly became very hard to pump. It was back flushed, but this didn’t help. It could be used, but took a lot of pressure to pump and was very slow. The other two filters experienced similar problems throughout the week. We back flushed frequently, but the Hyperflows were all extremely hard to pump, and therefore very slow.
The filter element seems far too fragile for backcountry use. It can’t be frozen, and requires a lot of care. It is too bad because I love the design of this filter. It is compact and lighter than any other filter I have owned. Until the filter element is re-designed, I would not recommend this filter to anyone.
5 Stars Manufacturer Comments
Note from the manufacturer: We have identified a flow performance issue with some of the hollow fiber filter cartridges contained in MSR HyperFlow microfilters. The performance issue DOES NOT affect the product’s ability to filter safe drinking water but can be frustrating as the flow rate of the filter may not perform to product specifications. The issue has been rectified and all filter cartridges currently in production for the MSR HyperFlow microfilter perform to flow specifications.
It is our goal to provide you with the most innovative and reliable outdoor gear available when you need it most. You can be confident in the efficacy of the hollow fiber filter technology, but if you are experiencing a less-than-expected flow rate on the MSR HyperFlow microfilter right out of the box or after back flushing, we want to know. Please contact our Customer Service Department at Cascade Designs, Inc. by calling 1.800.531.9531, and we will send you a valid replacement filter element at no charge for any filter cartridge manufactured prior to November 11, 2008. Please have your filter cartridge element handy as we will ask for the serial number for our records and manufacture date verification.
Please also check www.msrgear.com for improved MSR HyperFlow microfilter instructions and an instructional video on proper back flushing of the unit.
4 Stars Best Yet
I used this filter over six months of almost weekly backpacking but only in flowing water. Filtered 16 liters of snow melt for our climbing party of 12 in less than 30 minutes and hassle-free. The bottle-mount adapter fit most of the 1 liter bottles carried by our team. Fast and easy to use.
Buy/More Info
