Ceramic sand filter is made with Porcelain clay, clay and other as raw material,and through crushing, screening, mixing into the spherical product,through the high-temperature burn,it has reddish-brown appearance with hard, wear-resistant, high-speed filter, adsorption ability, and good physical and chemical properties,etc performance. (Common specifications of a variety of particle size between 0.5-32). Applly to purification for various kinds of filter and ion exchange equipment.