Grayl UltraPress® Replacement Purifier Cartridge Women's Sweaters & Hoodies we've spent over 20 years

we've spent over 20 years perfecting the art of adventure—and underwear

Easy to carry over the shoulder or by hand and just as suitable for travelling as everyday use

cycle touring and any activity where you need to maximize pack space by compressing your bulky items to one-third of their volume

but avoid sharp or abrasive rocks and knife blades

making them ideal for running

Grayl UltraPress® Replacement Purifier Cartridge Women's Sweaters & Hoodies we've spent over 20 yearsReplacement purifier cartridges for the UltraPress are designed to last 300 cycles (40 gal. 150L). Lifespan will decline when purifying water with high levels of silt, sediment or tannins. Cartridge press time increases towards the end of the cartridge lifespan; when press time reaches 25 30 seconds, the cartridge should be replaced. Cartridge continues to protect, even as press time increases. Removes waterborne pathogens (viruses, bacteria,