Interline Shock 55 Granulate Pool Cleaner Using chlorine shock is ideal when you want to quickly bring the water to the right level. Because it is destabilized chlorine, it works quickly and effectively. For proper functioning, the pH value should be between 7.2 and 7.6, so always test the water beforehand. Mix the correct amount of chlorine granules in a bucket with pool water or warm water. Then spread the mixed solution in the pool. Specifications: Color: white Gender: unisex Material: plastic Dimensions: 26 x 26 x 25 cm Contents: 5 kg pH value: 7.2 - 7.6