Hot Spring® FreshWater® Salt System Cartridge (3-pack)
The disposable and maintenance-free titanium cartridge, hidden away in the spa, is easy to replace in just a few seconds, without tools. Comes with 3 replacement filters per pack.
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.*
*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.