Hydrapak UltraFlask™+ 500ml with Filter Cap

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### Hydrapak Says ### Lighten your load and drink right from the source. We took our go-to flask and added filtration to create a system that delivers hydration without contaminati on. 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. FILTER FACT SHEET | FILTER USER MANUAL *Effectively removes common waterborne bacteria, such as E.coli (99.999%) and parasitic cysts (99.9999%) per HSF 42. Show more