Ten gallons, 15.38 x 13.25 x 13.25 inches, 14 lb: the B263 is the tank for boats and campers where every cubic inch is contested. Its square cross-section - equal width and height - means it sits stable on any face during install and packs against a bulkhead without wasted taper.
Small does not mean single-purpose. This is a B-series dual-role molding: fresh-fitted, the food-grade polyethylene supplies a day of potable water for washdown, galley, or a camp sink; waste-fitted, it is a tidy gray water catch for a compact head or vanity. Ronco ships it blank either way - print the drawing below, mark where each fitting lands, and the on-page fitting planner specs the spin-weld or threaded fittings installed per order.
Full, it carries about 83 lb, enough to matter in a small hull, so mount it low and strapped. Molded in Tustin, California since 1974. See how the small end of the range fits together in our boat tank category, RV water tanks, and the full Ronco Plastics hub. OneSource Plastics is an authorized Ronco Plastics dealer.
Technical drawing: download the Ronco Plastics B263 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.
