The built-in Cassette Toilet consists of two parts: a permanently installed toilet and a removable wasteholding tank. A clever indicator lets you know when the tank needs to be emptied, and you can access and remove the tank through a small door on the outside of the vehicle. Choose from various models. From a Cassette Toilet with a bowl that can turn 90° to each side (C200/ C250/ C260) to a waste-holding tank with wheels and an extendable handle