The Ronco Plastics B380 is a wide, shallow 42 gallon platform: 40 x 26.75 x 10 inches, built for bilge floors and basement bays where height is capped at ten inches but floor area is generous. The B-series dual-role design means one molding covers both jobs; order potable fittings for a food-grade fresh water tank, or waste fittings for a gray or black holding tank with the same footprint.
Loaded, it holds about 350 lb of water at 8.34 lb per gallon spread across that broad base. The tank itself ships at 92 lb, a thick-walled shell that resists panting in a wide, flat span.
Print the drawing below and mark where each fitting belongs, because the factory installs them per order, spin-welded or threaded to your layout. The fitting planner on this page turns those marks into a clean spec. Ronco has molded to order in Tustin, California since 1974.
More low-profile choices under boat tanks and RV holding tanks; price delivery with the freight estimator. OneSource Plastics is an authorized Ronco Plastics dealer.
Technical drawing: download the Ronco Plastics B380 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.
