Replacement Filter for our 28oz, 38oz, 46oz bottles and water pump. NDūR's Portable Filtration Devices are the most laboratory and field-tested of their kind in the world using EPA protocols and test
• Constructed of lightweight 500 denier ripstop (pouch and lid) • Fully ambidextrous design supports ambidextrous installation • Shells are secured by elastic and protected by a pouch and cover