The Propur™ Nomad stainless steel water purification system is economical, convenient and easy to use. The system requires no electricity to provide reliable water filtration just about anywhere whether at home, office, vacation, camping or college dorm! Works with just about any water source including tap, lake, river, stream, pond and rain water. Each container is made from one piece of high quality BRUSHED stainless steel for lasting durability and attractive appearance. This system is ideal for indoor/outdoor daily use and for emergency preparedness. The Propur™ Nomad is our most versatile system. It has been sized between the Traveler and the Big systems for those looking for portability but desire higher flow rates than provided by the Traveler system.