Dock Edge Passport Potty Portable Toilet - Grey - 18L

The Dock Edge Passport Potty 18L (MPN DEF150101) is a self-contained portable flush toilet built for boats, RVs, campsites, and cabins where there's no plumbing to tie into. It runs entirely manual, so there's no power draw on a house battery or shore supply. With an 18L (4.8 gal) holding tank and a 14L (3.7 gal) fresh water reservoir, it carries enough capacity for multi-day trips without constant emptying. If you're outfitting a boat or building out a remote camp setup, this sits in the same workflow as the rest of our portable toilets and marine sanitation gear.

The two-section design splits the fresh water tank from the waste holding tank, which keeps clean and dirty separated and makes emptying straightforward. A bi-directional piston pump drives the rinse, pulling from the 14L upper reservoir to flush the bowl clean. The seal between sections is rated leak and odor-proof, so the unit can ride in a locker or vehicle without venting smell into the cabin. A built-in waste level indicator tells you when the 18L tank needs dumping before it backs up. Overall dimensions run 14.25 inches high by 14.6 inches wide by 16.5 inches deep (36.2 x 37 x 42 cm), and the whole unit weighs 9.25 pounds empty, light enough to carry to a pump-out or dump station by hand.

Boaters use this on weekend cruisers and pontoons that lack a marine head, while campers and overlanders keep one in the truck or trailer for sites without facilities. The 18L holding capacity gives more time between dumps than the smaller 8L and 12L models in the same line, which matters on longer outings. It pairs well with a fresh water supply from one of our water filtration options and rounds out a marine outfitting kit alongside our boat outfitting selection. For a larger-bowl alternative in the same family, see the Dock Edge Visa series.