Cascade Designs Platypus CleanStream Gravity Filter System

The super-light - pump-free - high-flow CleanStream Gravity Filter System by Platypus filters 4 liters of water in less than 2 ½ minutes and the closed system allows filtering and cleaning—simply hold the filtered-water bag above the unfiltered-water bag to backflush and clean the filter—all to be done without disassembly. Comes with two reservoirs - filtercartridge - hoses - and all fittings.