UltraPress Purifier Cartridge s23 Hand warmer pockets keep your

Hand warmer pockets keep your hands warm on cold days

1 teaspoon each of Part A and Part B to 5 gallons of water

reinforced construction adds mountain-ready durability

and a secure zip pocket lets you keep keys and cash tucked safely away

UltraPress Purifier Cartridge s23 Hand warmer pockets keep yourReplacement purifier cartridges for the UltraPress are designed to last up to 300 cycles (40 gal. 150L). Lifespan will decline when filtering and 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