About this item Exclusive Protective Packaging: Each 5pcs 3 inch chlorine tablets for pool are tightly wrapped in a protective plastic box to prevent accidental breakage . Active Ingredients:Each chlorine tablet contains 99% Trichloro-S-Triazinetrione with 90% available chlorine. Clean Effectively: Kills bacteria and stops algae growth to keep your pool clean and clear all season long. Long-Lasting Protection: Ensure your pool remains effective with Profeliz chlorine tablets for poo even under direct sunlight exposure. Profeliz 3”chlorine tablets for pool are designed to dissolve slowly and last up to one week. Suitable for all pools: 3 inch chlorine tablets for pools are great for all swimming pool types, including above ground and in-ground pools.Profeliz chlorine tabs for swimming pool fit easily into most of pool skimmers, floaters or other chlorinating devices. › See more product details