NACS Water Purifier (WPD) Convenience - 2 sets (4 small bottles)
2 oz. bottles - perfect for carry-on the airplane when traveling, or for hiking and camping.
2 small Natural Antibacterial Cleaner Solution (NACS) Water Purifiers (liquid) + 2 small citric acid (liquid) 2 oz ea bottle. The citric acid is premixed according to the latest approved 1000 protocol of 50%/50%. It is easy to share one NACS WPD kit with a friend.