The B560 is 10 gallons in an 18 x 12 x 12 inch package - small enough to carry aboard in one hand at 14 lb, big enough to matter. Ten gallons is a weekend of drinking and cooking water for two, or the holding capacity that keeps a small boat welcome in a no-discharge anchorage. It is the honest minimum, molded properly.
Like every B-series tank it is a dual-role blank: the fittings you order make it either a fresh water tank - FDA-approved potable polyethylene - or a compact gray/black holding tank. Ronco spin-welds or thread-installs those fittings at the locations you mark, so the tank arrives plumbing-ready for the role you chose. Print the drawing below, mark the ports against the real locker, and confirm them in the fitting planner on this page.
Full weight is about 83 lb on a small, stiff footprint; a plywood shelf and one strap is a complete installation. The squat proportions have no panel large enough to flex. Molded in Tustin, California, where Ronco has rotomolded tanks since 1974.
Step up in capacity through the boat tank category or cross to RV holding tanks for land duty; the complete catalog is on the Ronco Plastics hub. OneSource Plastics is an authorized Ronco Plastics dealer.
Technical drawing: download the Ronco Plastics B560 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.
