Box contains (1x Blue Mineral Cartridge, 1 Grey SmartChlor Cartridge, Test Strips, Jump Start package) WORKING: Fresh Mineral Water works to make water softer, gentler and conditioned; (Approximately a 4 Month Supply of product included in this kit) USES: Floats in spa water and flips over when empty, indicating the SmartChlor cartridge needs to be replaced Crystal clear water for weeks at a time using less chlorine; So your hot tub is always ready to use
