MSR AutoFlow XL Gravity Filter
MSR AutoFlow XL Gravity Filter, Features of the MSR AutoFlow XL Gravity Filter Fast: Uses gravity to filter 1.75 liters per minute, letting you multi-task at camp Versatile: Bag hangs or stands upright for maximum convenience Rugged: Durable film reservoir with RF-welded seams Field-Maintainable: Filter is easily cleaned in the field no tools required Safe: Hollow fiber filter meets NSF protocol P231 for removal of bacteria, protozoa and particulate