A perfect 32 x 32 inch square, nine and a quarter inches tall: the Ronco Plastics B383 is a 36 gallon pancake built for square hatches and center-bay floors where a rectangular tank wastes corners. It weighs 39 lb out of the box. As a B-series dual-role molding it serves as a potable fresh water tank, food-grade polyethylene throughout, or as a gray or black waste holding tank, depending entirely on the fittings you have installed.
Full of water it carries about 300 lb at 8.34 lb per gallon, distributed evenly across the square base.
Symmetry gives you freedom: fittings can land on any face, and the factory installs them per order, spin-welded or threaded at your marks. Print the drawing below, decide which orientation the tank will sit in, and use the fitting planner on this page to lock the spec. Ronco has custom-fitted every tank from its Tustin, California plant since 1974.
Compare other marine tanks and RV holding tanks. OneSource Plastics is an authorized Ronco Plastics dealer.
Technical drawing: download the Ronco Plastics B383 dimensional drawing - print it to plan your install and mark exactly where you want fittings located; Ronco installs spin-weld or threaded fittings to your marked spec.
