The FreshWater Salt System Cartridge 3-Pack for Caldera and Hot Spring Hot Tubs makes water care simple. The disposable and maintenance-free titanium cartridge is easy to replace in just a few seconds – no tools needed! This product includes with 3 replacement filters, enough to last an entire year.
The FreshWater Salt System is an affordable and easy-to-use water care system that keeps spa water clean and clear for a full year. Each cartridge lasts up to 4 months.*
*Many factors affect the life of spa water, such as bather load and water chemistry. When these factors are accounted for and the spa is properly maintained, the FreshWater Salt System will keep water clean and clear for a full year.