UltraPress Purifier Cartridge Color:Black On-the-go filtration and purification for

On-the-go filtration and purification for the hiker

stretch woven fabrics

Dual cinch top closures keep your bottle secure while on the move

and heavy metals

UltraPress Purifier Cartridge Color:Black On-the-go filtration and purification forReplacement 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 should be replaced. Cartridge continues to protect, even as press time increases. Compatible with One Way Silicone