GRAYL - Ultrapress Purifier Bottle - Water filter size 500 ml, sand

Removes: Waterborne pathogens (99.99% of viruses, 99.9999% of bacteria, 99.9% of protozoan cysts), including Rotavirus, Hepatitis A, Norovirus, Giardiasis, Cryptosporidium, E. Coli, Cholera, Salmonella, Dysentery and more. Durability: built tough to perform in harsh conditions and withstand 10 ft drops (full of water) onto concrete Cartridge lifespan: rated for 350 cycles (65 gal. / 250L), as “press time” reaches ~25 seconds (or three years have elapsed since first use) it’s time to replace your purifier cartridge BPA-Free materials: made from polypropylene #5, food-grade silicone, TPE, ABS food-grade plastic Testing standards: independently tested by a certified laboratory to meet or exceed NSF protocol 42 and 53 for pathogen and chemical removal; meets the EPA Guide Standard and Protocol for testing microbiological water purifiers