At Ease Swim Spa SmartChlor Replacement Cartridge

For use only with the FROG® @ease® Sanitizing System for SwimSpas. The unique SmartChlor® Technology self-regulates, slowly releasing over 3 weeks for a consistent Free Chlorine level that is Cyanuric Acid free. This Cartridge is translucent gray – you can see the SmartChlor® inside! When the System flips over, it’s time to replace it.