Katadyn Micropur Classic MC 1T Tablets Guaranteed drinking water thanks to silver ions 50 tablets An ideal companion for travelers and holidaymakers, Micropur Classic is the most effective and ecological method for conserving water. Silver ions inactivate bacteria in storage tanks. The ingredient remains active for up to 6 months, preventing the development of algae, germs or unpleasant odors. Technology: silver ions. Waiting time: 2 hours. Presentation: Tablets. Shelf life: 10 years. Use: for small quantities of water (e.g. water bottles). Use biocides with caution. Read the label and product information before use.