Rainstick

The Rainstick is a simple membrane envelope with 30 g of our nutrient blend osmotic driver inside. It’s designed for fresh or brackish water sources. Since it comes pre-filled, this single-use filter is simple to use – just drop it in the water source and wait while it hydrates. When it’s done, it provides 355 ml of a clean, refreshing drink. Simply poke with included straw and drink.