1kg Swimming Pool Hot Tub & Spa Chlorine Granules - Anti-Bacterial PH Balance Kills bacteria and eliminates harmful organisms to ensure your hot tub or swimming pool is safe to use for the whole family. Granules are completely soluble and have minimal impact on pH levels while dissolving much faster than tablets. Use to stabilise your pools chlorine levels, keeping your hot tub or pool safe and allowing more time to be enjoyed in the water. Suitable for all makes and models of hot tubs, spas and swimming pools. Alias ID - ys12312