Zoom icon Click to expand Tap to zoom Chevron down icon Chevron down icon HyperFlow Replacement Cartridge by MSR $39.95 Availability: translation missing: en.general.icons.icon_check_circle icon Only 1 left! 1 2 3 4 5 6 7 8 9 10+ Quantity Chevron down icon Quantity Add to cart Spinner icon Looking for Local Pick-up? Choose a store below. Product Locator by Locally Notify me when back in stock Email address Email me when available Restore flow rates in your HyperFlow Microfilter with fresh, new Hollow Fiber media. Filters up to 1000 liters. Results will vary depending on conditions.