Grayl UltraPress Water Purifier Replacement Cartridge

Description Our replaceable Purifier Cartridge is suitable for the rigors of global travel, outdoor adventure, and emergency use. Full-spectrum purification ( filtration) provides ultimate protection against pathogens (viruses, bacteria, protozoa), particulates, chemicals and heavy metals. Stored under proper conditions, an unopened Purifier Cartridge has a shelf life of 10 years. After a cartridge has been used, it lasts at least three additional years