Veythix Hot Tub Chlorine Cartridges Replacement for Frog Ease Floating System - Hot Tub Maintance System Supports Less Chlorine Use - Perfect for Hot Tubs 200 gallons to 600 gallons，CYA Free 3 Pack

["Versatile Compatibility: Works with Frog floating systems and is adaptable to various hot tub and spa configurations","Extended-Use Performance: Provides up to four weeks of reliable water treatment with very low maintenance","Demand-Based Release: Automatically modulates chlorine levels based on spa usage to maintain balance and prevent over-treating","Kinder to Your Senses: Experience softer-feeling water that protects your skin and swimsuit from harsh chemical overload","Hassle-Free Handling: No messy granules or complicated tools—just drop it in and let it work"]