Outdoor Filtered Bottle

The O-B4 is a reusable sports bottle with the filter built into the straw, so the water is filtered as you drink rather than before you fill.

Three capacities — 600, 750 and 1000 ml — share one filter platform, which keeps spare-part inventory simple for a distributor.

Filter lifespan is rated 3000 L at a 200 ml/min draw rate.