DISINFECT POOL AND SPA WATER➡ With these stabilised chlorine granules - free active chlorine (FAC) to maintain a healthy swimming/bathing environment ELIMINATE HARMFUL BACTERIA & ORGANISMS➡ Your spa or swimming pool water stays clean, hygienic and healthy FAST DISSOLVING GRANULES➡ No more waiting around for hours for tablets to dissolve EASY TO USE➡ included with the granules help you select the correct amount to apply for the desired increase in chlorine level. To help ensure your water chlorine level stays between 1-3 mg/litre (ppm) for pools and 3-5 mg/Litre (ppm) for hot tubs PACKAGE INCLUDES➡ 2 Kg Chlorine granules suitable for all hot tub spas and swimming pools