Caldera Salina @Ease In-Line SmartChlor Cartridge 3-Pack;

Replace your old spa filter with the new Spa Frog @Ease In-Line SmartChlor Cartridge. Hot Spring Spa filters are a vital part of any spa system. Spa filters regulate the water that enters your spa and keep debris, dirt, and other items from floating into the pipes and damaging the pump and inner workings of your hot tub. Chlorine replacement cartridge for Caldera In-Line @Ease sanitizing system. Includes three cartridges.