2-Pack LifeStraw Water Filter

Comes out to $7.49 per filter

• Unlimited shelf life and has been tested all over the globe to face the harshest conditions
• Filters up to 1,000 gallons (4,000 L) of water, that’s enough drinking water for an individual for over 5 years
• Protects against 99.999999% of bacteria (including E.coli, Salmonella), 99.999% of parasites (including Giardia and Cryptosporidium), 99.999% of microplastics, silt, sand, and cloudiness
• Ultralight and durable, the LifeStraw weighs less than 2 ounces (46 g) so you can pack it anywhere

For reference only:

• Amazon reviews