Grayl GeoPRESS Replacement Cartridge _tab1_ultrapress-features our Expanse BottleDrop™ and BottleLock®

our Expanse BottleDrop™ and BottleLock® storage systems offer you a multitude of options to carry any water bottle and essential gear

Adventure ready water purifier

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

The perfect hunting and adventure ready water purifier

Grayl GeoPRESS Replacement Cartridge _tab1_ultrapress-features our Expanse BottleDrop™ and BottleLock®Replacement 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