Thetford Porta Potti 135 The Thetford Porta Potti 135 is an affordable, high-quality portable toilet perfect for use on a boat, RV, or when camping. The Porta Potti 135 features a refreshed modern appearance with a cleaner seat and cover design. This toilet also includes a redesigned valve handle, fill cap, and pump. With an ergonomic carrying handle, the Porta Potti is easy to transport. Features Durable, easy to use, and easy to clean Exclusive rotating pour-out spout Deodorant sample included