Magnetite filters is the essential materials of the three-tier filter tank, which has the characteristics of fast filtering speed, strong sewage ability, long used period. Our production of magnetic media, with features of spherical appearance , high mechanical strength, non-toxic substances. Technical parameters : Specific Gravity(m3/t) Attrition Loss % Hardness broken rate Ferric(Fe) 4.5 max0.04 6 max0.05% 20-40 Sulphur(S) Fe2O3 Ash Content Bulk density Uniformity Coefficient 0.26% 70% max2.5% 2.95g/cm3 max1.8