Ferric and non-ferric aluminium sulphate granular flake lump Ferric 15.6% non-ferric 15.8% non- ... 17%.water treatment paper mackingnon-ferric 17% granular 2-5mmFerric 15.6%-16% granular 2-5mm Aluminium sulphate Ferric 15.6%, non ... -ferric 15.8% and non-ferric 17% granular, flake, lump