The UltraPress Purifier Bottle (500 ml) is compact, fun, and incredibly easy to use. It fits into any backpack pocket or cup holder, requires no preparation, and filters 500 ml of safe, great-tasting drinking water in just 10 seconds (3 l/min). Ideal for hikers, backpackers, campers, or travelers who need quick, purified water for drinking, refilling containers, or cooking. The included filter lasts for 300 uses (150 L) before it needs to be replaced. Just fill it up, press, and drink.