efficient:65% min,granular 100% mesh size:8-30mesh packing:in 40kg, ... can be changed according to need. efficient chlorine65% min,granular 100%,no powder,no mixedpackingpacked in 45kg,50kg plastic ... 20"container can hold 400-450drums,about 20tons of calcium hypochlorite,also can be changed as requirments(as the pictures ... of you in near future stable and efficient calcium hypochlorite(granular 100%)