DISINFECT POOL AND SPA WATER With these stabilised chlorine tablets maintain a healthy swimming/bathing. ELIMINATE HARMFUL BACTERIA & ORGANISMS Your spa or swimming pool water stays clean, hygienic and healthy SLOW RELEASE chlorine tablets will slowly erode over 3-5 days for long-lasting application. Also, It is easy to store for later usage. 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 Chlorine tablets suitable for all hot tub spas and swimming pools. Shatchi Chlorine Tablets Water Treatment for Cleaning of Hot Tub & Spa in White Size: 2 Pack