10-action two-layer chlorine tablets, 250 g, 5 kg container. this complete product provides pool water with the following effects: disinfectant, limescale remover, algaecide, clarifier, flocculant, brightener, bactericide, shock treatment, ph maintainer, and chlorine stabilizer. its two-layer formula dissolves in two phases: phase 1: 75 g of fast-dissolving tablet for a shock treatment. phase 2: 175 g of slow-dissolving tablet for optimal maintenance. dosage: 1 tablet per 35 m³ of water