LifeStraw Personal Water Filter

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Each Life Straw filters up to 4, 000 liters (1, 000 gallons) of water (pack of 3 will filter 3, 000 gallons)
Removes 99.9999% of bacteria including Escherichia coli (e-coli), campylobacter, vibrio cholera, pseudomonas aeruginosa, shigella, salmonella

Amazon.com Price: $80.89 (as of 01/22/2022 13:34 PST- Details)