Spa Frog @Ease & Serene In-Line Mineral Cartridge
The Spa Frog @Ease Mineral Cartridge further reduces the need for chlorine by inhibiting bacterial growth. Silver ions are released into the water automatically so there’s no chance of under- or over-dosing. Simply replace the cartridge every four months. Compatible with Spa Frog @Ease In-Line SmartChlor System and Spa Frog Serene Floating Bromine System.