Water softening salt tablet grade Naci. :99.10% Calcium :0.15% Megnacium :0.10% Water insoluble :0.10% Sulphate :0.32% Moisture by weight :.20% Tablet dimensions Side thickness. :0.9 to 11 mm Center thickness :14 to 16 mm Dia. :25 mm Weight of tablet : 9 to 10.0 g
