The Hydrapak Ultraflask + Filter Kit is a 500ml softflask combined with a built in HydraPak water filter. The soft flask itself conforms to most hydration packs and larger vest pockets for a secure and stable fit. A great solution for long distance runs in more remote areas. The filter removes Escherichia coli bacteria, Cryptosporidium parvum cysts, and Giardia Lamblia from approximately 1,500 liters of water at a rate of >1L per minute. It can be easily cleaned using the included backflush adapter which plugs into the filter valve and threads onto a HydraPak Stow or bottle of clean water for backflushing the filter to restore its flow rate. Hydrapak Ultraflask + Filter Kit features Vest Pack fit. Easy to drink bite valve 1,500 liters lifespan >1L per minute flow rate Hollow fiber filter Included backflush adapter Weight: 65gCapacity: 500 mlDimensions: 240 mm x 70 mm
