The Flint & Walling 1/2CF Calcite Mineral (Model 136372) is designed for effective water treatment applications. This calcite mineral is used to neutralize acidic water, helping to maintain optimal pH levels in your water supply. Packaged in a convenient 1/2 cubic foot size, it is easy to handle and install in various filtration systems. The high-quality calcite ensures efficient performance and meets industry standards for water treatment, making it an essential component for maintaining water quality in residential and commercial settings.