Clinobrite is a specific type of Zeolite mineral exclusively mined in South Africa by Pratley. It is a direct substitute for pool filter sand that saves you money by scavenging unwanted ammonia from pool water and thereby reducing your swimming pool chlorine consumption. It is a true 21st century filter medium with both ion exchange and superior micro-filtration properties. Unlike ordinary filter sand, the surface of Clinobrite grains are not smooth. Clinobrite grains attract and trap extrem