Whether you're hiking, running, or biking, the RapidPure Scout Inline Purifier gives you the power to filter and purify water on the go with an ultralight water purifier that integrates with your water bladder. Weighing only 2.7 ounces, this pocket-sized inline water purifier is an ideal backpacking water filter and works with standard or pressurized hydration packs. Unlike microfilters that rely on pore size to simply filter out bacteria and sediment, RapidPure water treatment actually purifies water using electroadsorption, removing bacteria, parasites, viruses, parasites, chemicals, heavy metals, pesticides, and microplastics, as well as filtering out sediment. As an inline water filter, the Scout protects against these contaminants from the source water and from the hydration pack itself, as residual moisture can cause mold growth in the pack. The Scout is an ultra-fast system that doesn't require pumping, priming, or batteries, making this water bladder filter also one of the best water purifiers for high intensity activities. RapidPure continues to work even after it has been frozen, giving you peace of mind if the temperature suddenly drops. With RapidPure water purifiers, quenching your thirst is safer, faster, easier, and better tasting.