The Hydrapak Ultraflask + Filter Cap is a replacement softflask cap with integrated water filter. Designed to fit on HydraPak's 42mm running flask that come with most running packs, turning your soft flask into an on the go water filter. 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 litres of water at a rate of >1L per minute. It can be easily cleaned by backflushing the filter from a clean water bottle. Hydrapak Ultraflask + Filter Cap features Easily thread the filter onto some of the most popular running softflasks, flexible bottles and water storage containers. Easy to drink bite valve 1,500 litres lifespan >1L per minute flow rate Hollow fibre filter Weight: 36g
