Thetford Porta Potti Qube 365Thetford Porta Potti Qube 365 The Thetford Porta Potti Qube 365 is the largest in the range of convenient and easy to use portable toilets, designed for camping and caravanning. It is a family sized toiletwith a natural seating height and a high capacity waste holding tank. The manual flush and the bellow pump ensure plenty of water with minimum effort. The detachable tanks and improved carrying handle make it easy for emptying and the integrated