tersano's cartridge is a patent-protected filtration system. Cold water enters the cartridge, where resins remove select minerals. Once pre-treated, the water is ready for the lotus PRO to infuse with ozone and create SAO^®.

SAO-4 cartridges have a capacity of 5,000 liters. When paired with the lotus PRO, the system creates SAO that is a disinfectant for up to 4 hours and cleaner for up to 3 days.*

*Claims may vary based on region.