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.
WE HAVE YOU COVERED
Locate the Purifier Cartridge “lock tab” at bottom of Inner Press. Then pull out the “lock tab”and unscrew the cartridge (lefty loosey) until it separates from the Inner Press.
Firmly grasp Inner Press, then insert cartridge into bottom of Inner Press.
03 ROTATE AND LOCK
Rotate the cartridge (righty tighty) until you feel the 'lock tab' firmly click into the lock slot. Do not over tighten..
TASTE THE RIVER
ADD ONE-WAY VALVEBy Clicking the Link
The silicone One-Way Valve prevents liquid from reversing direction and flowing back into the filter Cartridge. Allowing the use of electrolytes, drink mixes, and other beverages with your Grayl UltraPress® Filter & Purifier Bottle.
Compatible with older UltraPress® Cartridge versions.
Watch the quickstart video series to get up and running with your new cartridge.