The Platypus Gravityworks Filter combines the efficiency of pump-free water treatment with lightweight and compact storage. . Two reservoirs clearly marked, CLEAN and DIRTY to prevent mix-ups. Ultra-fast filters 4 liters (140 oz.) of water in 2.5 minutes. Exceeds EPA guidelines for removal of bacteria and protozoa. Streamlined filter housing and zipperless Clean reservoir save weight. Reinforced handles for hanging and carrying. SlimeGuard antimicrobial treatment for lasting, taste-free performance. Easy to clean; back flushes in seconds

About Eastern Mountain Sports
"The adventurer’s heart is a spellbinding mix of passions – a fire that burns to explore the limits of both nature and self. And to push those passions to the max every single time they take it outside, we at Eastern Mountain Sports know that every adventurer needs to believe in every single thing that’s in their pack – starting with the pack itself." --- Eastern Mountain Sports; More Details