Filter out the folly with the UltraPress Replacement Purifier Cartridge from Grayl.
Designed to fit Grayl’s separately available UltraPress Purifier Bottle, this cartridge lasts 300 cycles or 150 litres. Bringing a whole new meaning to 'pure genius', it purifies water by removing waterborne viruses, bacteria, and Protozoan cysts. You’ve got a friend in the filter, screening sediment, microplastics, chemicals, pesticides, and heavy metals in only seconds. While the lifespan of your bottle's existing cartridge decreases as your press-time increases, keeping this replacement purifier cartridge means your water can continue to be clean with every refill.
Enjoy better tasting and smelling water during those magic mountain-top moments.