Vest compatible filtration.Lighten your load and drink right from the source. Hydrapak took their go-to flask and added filtration to create a system that delivers hydration without contamination. The filter-light and compact-screws on top so you can drink right from the flask. Or-if you’re carrying more water-use the system to fill a bottle or reservoir. Effectively removes common waterborne bacteria, such as E.coli (99.999%) and parasitic cysts (99.9999%) per HSF 42.Features• Easy to use• Fits running packs and vests• Lightweight• Packs Down• Vest Pack Fit: Soft material conforms to most hydration packs and larger vest pockets for a secure and stable fit• High-Flow: Easy to drink bite valve auto-seals after each sip, eliminating annoying drips• Large Opening: 42mm opening lets you fill the flask easily at any water source• Compressible: Flexible design shrinks as you drink, minimizing water movement• Included Backflush Adapter: Plugs into filter valve and threads onto a HydraPak Stow or bottle of clean water for backflushing the filter to restore its flow rate• Fast & Safe Filtration: The integrated 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• Secure Grip: A flexible and structured grip makes it easy to hold the flask while screwing and unscrewing the filterMaterials• TPU, Silicone POM, Hollow Fiber, ABSSpecifications• Capacity: 500ml/17fl oz• Dimensions: 9.4x2.8in/240x70mm• Weight: 65g/2.3ozCare• Avoid freezing filter• Freezing may ruin the hollow fiber membrane• If in freezing conditions we recommend you keep the filter in your pocket or near your body to prevent freezing
