Ultrapress Purifier Cartridge Color:Black Includes easy-to-use single-stage sharpener that

Includes easy-to-use single-stage sharpener that keeps blade razor sharp

waterproof gaiters with best-selling Helium fabric

Two deep side pockets for storing your extra spools

Reinforced anti-abrasion patch around the inner ankles to protect against nicks and cuts

Ultrapress Purifier Cartridge Color:Black Includes easy-to-use single-stage sharpener thatOverview Replacement 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. _____________________________ Features Removes