MSR AutoFlow Gravity Water Filter for Camping and Backpacking, 2-Liter

Amazon.com Price: $105.95 (as of 09/30/2020 10:15 PST- Details)

No pumping: uses the power of gravity to filter 175 liters per minute, offering you the efficiency to Multi-Task at camp
Rolls tight: durable film reservoir and closure system reduce bulk for discreet packing