saney @Ease Mineral Cartridge + SmartChlor Cartridges for Marquis, Caldera, Artesian & Hot Spas - Hot Tub , CYA , for up to 600 Gallons

For use in certain hot tub models: Artesian , Artesian Island (optional on Artesian Island and South Seas); Marquis Crown (optional on Marquis , Vector and Celebrity); Caldera Vacanza; and Hot Spring Hot Spot. Includes 1 Mineral Cartridge that lasts 4 months plus 3 saney @ease SmartChlor Cartridges, each lasts up to 3-4 weeks depending upon hot tub size and usage; ideal for 600 gallon hot tub. Kills bacteria 2 ways with a low level of chlorine and saney Sanitizing Minerals. Uses up to 75% less chlorine* and maintains a consistent low Chlorine level. saney Sanitizing Minerals condition the water for softness, help keep pH balanced, and absorb acids, all while helping kill bacteria and taking the pressure off of chlorine.