The Kinetico Block Salt 2 Packs of 8kg Water Softener Block Salt is a product designed for use with all block salt water softeners. This 8kg pack contains a total of 2 blocks, each measuring 4kg. The Kinetico brand ensures quality and compatibility with a wide range of water softener models. Ideal for maintaining a clean and efficient water filtration system, this block salt is a reliable solution for softening your water supply.