SAO Replacement Cartridges SAO Replacement Cartridges The SAO dispenser replacement cartridge by Tersano is a patent-protected filtration system. Cold water enters the cartridge, where resins remove select contaminants. Once stabilized, this water is ready to be infused with ozone and creates SAO™. Product: SAO-24 CartridgesCost: $350.00 Product: SAO-4 CartridgesCost: $480.00 Add to Cart: SAO-24 Replacement Cartridge Add-to-Cart: SAO-4 Replacement Cartridge Features:SAO-24 Replacement CartridgesUp to 24 hours of sanitizing.Up to 6 days of cleaning.(*varies based on incoming water quality and flow rate).SAO-4 Replacement CartridgesUp to 4 hours of sanitizing.Up to 3 days of cleaning.(*varies based on incoming water quality and flow rate). Benefits:Elimiates germs, odors, stains, mold and mildewQuickly kills viruses and bacteria including E. coli, Salmonells, MRSA and moreSafe and effective with no toxins, carcinogens, or chemical residueConverts safely back to tap water and oxygen. Weight 17lbsDimensions 24 x 8 x 8 Datasheet How it works - Sustainable cleaning solution How to change the cartridge