Thetford C260-CS Cassette Toilet with Plastic Bowl - No DoorThe 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*. Thetford Cassette Brochure *Service Door 3 not included,but can be purchased separately Benefits & Features Highest level of seating comfort on the market Plastic Bowl Swivel