MSR Hyperflow Microfilter Cartridge Replacement
After countless trips and innumerable field cleanings, your MSR Hyperflow is pumping a little slow. Pop in a Hyperflow Microfilter Cartridge Replacement and get fresh, fast water purification on your next backcountry excursion. This filter cartridge lasts for up to 1,000 liters of pumping depending on water conditions, and can be cleaned in the field to keep your filter flowing strong.