Pool Chlorine Grains Dichloro 55% "Shock"
Fast-dissolving dichloroisocyanuric acid granules, with 55% available chlorine from Astral Pool.
Used to kill germs, bacteria, and fungi that have become accustomed to the amount of chlorine released by slow-dissolving tablets
Essential when filling the pool and after rainfall
Dosage: For 100m³ of water, add 2kg each time the pool water does not appear clear.