FROG @Ease in-Line Sanitizing System for Hot Tubs, for use in Marquis Spas, Caldera Spas, Artesian Spas and Hot Springs Spas:

For use only in certain hot tub models up to 600 gallons: Artesian Elite, Artesian Island (optional on Artesian Island Elite and South Seas); Marquis Crown (optional on Marquis Elite, Vector and Celebrity); Caldera Vacanza; and Hot Spring Hot Spot
The FROG @ease In-Line Sanitizing System includes 1 Mineral Cartridge that lasts 4 months, 1 SmartChlor Cartridge, that lasts up to 4 weeks depending on hot tub size and use, FROG @ease Test Strips, and 1 package FROG Jump Start startup shock
Kills bacteria 2 ways with FROG Sanitizing Minerals that kill bacteria and SmartChlor – a unique, patented chlorine formula that adds a low level of chlorine only when needed. Say goodbye to constant monitoring
You use up to 75% less chlorine* with FROG @ease, making water easier on skin, hair, swimsuits, and your hot tub’s surfaces. FROG sanitizing minerals condition the water for softness, absorb acid to help keep pH balanced
You shock only once a month, or when draining and refilling your hot tub – that’s so much easier than shocking after every use – it saves time and the frustration of constant shock treatments