Manganese sand filter is made of high manganese ore as raw material selection and processing. Appearance of rough brown or light gray, multi-spindle angle is removing iron and manganese best products for drinking water in addition to iron, and manganese filtration devices. Technical indicators analysis project analysis project analysis manganese dioxide manganese carbide 12-22% 18-40% 16-20% silica, clay content ≤2.25% iron 8-19% capacity 2.2T / m3