Zoom icon Click to expand Tap to zoom Chevron down icon Chevron down icon AutoFlow Replacement Cartridge by MSR Save Liquid error (product-badge line 32): -Infinity% $54.95 | / 1 2 3 4 5 6 7 8 9 10+ Quantity Chevron down icon Quantity Sold out Spinner icon Notify me when back in stock Email address Email me when available Restore flow rates in your AutoFlow Gravity Filter by replacing a tired, worn cartridge with fresh, new Hollow Fiber media.