Shop our Thetford collection for portable marine toilets, holding tanks, and sanitation accessories. The Thetford Porta Potti is one of the most widely trusted portable marine toilet solutions in the world, completely self-contained, requiring no plumbing connections, and easy to set up and empty at a dump station. It's the standard recommendation for day boats, small cabins, and tender boats, adding basic head facilities. Go2marine carries Thetford Porta Potti models and accessories for clean, easy onboard sanitation.