The word Activated is what had me concerned. I usaly order a bag when making an order from foys to add to the grit. But if I can get it from Walmart sure beats shiping.Yes, they are both charcoal which is carbon. And the stuff you buy for the birds has lots of long and sharp pieces in it which I don't like to give my birds, so I brake them up. The charcoal or carbon for the filters comes in very small pieces, without the sharp edges.