Grayl GeoPRESS Replacement Cartridge _tab1_ultrapress-features owner of Pathfinder School and

owner of Pathfinder School and NY Times best selling author of Bushcraft 101

Adventure ready water purifier

All bottles ship with a One-Way Valve pre-installed making it possible to add electrolytes

5L and 4

great tasting drinking water in a mere 10 seconds (3L/min)

Grayl GeoPRESS Replacement Cartridge _tab1_ultrapress-features owner of Pathfinder School andReplacement purifier cartridges for GeoPress are designed to last up to 350 cycles (65 gal. 250L). 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, cartridge should be replaced. Cartridge continues to protect, even as press time increases. Compatible with One Way Silicone Valve for