Grayl UltraPress® + Ultralight Replacement Purifier Cartridge - Black Colours:BLACK 2 Lower Zipped Pockets -

2 Lower Zipped Pockets - Keep your essentials secure in the two lower zipped pockets

LuftCore technology embeds a lightweight

Double-sided file

Suede leather and synthetic upper

Small knife table attachment to sharpen small pen knives down to a 15° angle

Grayl UltraPress® + Ultralight Replacement Purifier Cartridge - Black Colours:BLACK 2 Lower Zipped Pockets -Replacement purifier cartridges for the UltraPress (Also works for the Ultralight) 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