Cafelat Knockbox Large Tubbi BlackThe Cafelat Large Tubbi holds around 40 double pucks before it needs emptying. To empty just lift the rubber bar out and discard the coffee as you wish. All it is, is a ABS plastic tub with a silicone rubber bottom gasket and a NBR rubber bar! No nuts or bolts or anything This Large Tubbi features a press fit silicone gasket on the bottom which means you can strip it down and clean it. It also prevents the tub moving about the place and also helps to