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With just a little salt in your spa water
Simply place it in your spa filter for hassle-free maintenance
One cartridge lasts about four months
Use these test strips to monitor your spa's MPS (oxidizer)
The HotSpring® 31114 Filter Cartridge is a replacement spa filter for 65 sq
FreshWater Silver Ion Cartridge Chemicals With just a little saltThe FreshWater Ag+ continuous silver ion purifier minimizes the amount of chlorine needed. It sends silver ions into the spa water that prevent bacteria from growing. It releases the ions automatically, so there is no chance of over or under dosing. Simply install the cartridge and change every four months.
US$ 8700.20
US$ 1369.51