- Propur Systems
ProPur gravity filter systems come in 5 different sizes. Sizes from smallest to largest are: Scout, Traveler, Nomad, Big, and King. All systems are made of stainless steel, and come with our exclusive stainless steel spigot, and non-slip pad. Each system comes with our ProOne G2.0 filter which not only filter out pathogens and contaminants, but also filter out fluoride.