Chemical: Aluminium Sulphate Ingredient: Al2O3: 17. Features: For fast removal of suspended matter in pool water. Appearance: Powder/ granule /tablet Size: 0.5kg(or 1lb),1kg(or 2lb),2kg(or 5lb),3kg,4kg(or 10lb),8kg and 10kg of Pillow Bags,Doy Packs,Gusseted Bags and etc. 0.5kg (or 1lb),1kg (or 2lb),2kg (or 5lb),3kg,4kg (or 10lb),8kg and 10kg of Pails, Jars, Jugs,Pots,Tubes,Drums and etc. 25kg or 50lb bags.