Ronco offers 36 gallons in more than one molding, and the B340 is the lighter build: 34 lb empty, a standard-wall marine blank for installations where the tank is protected and the premium alternative would be weight spent for nothing. A cruiser replacing a tired original tank, a refit adding a second fresh tank for balance, a catamaran owner matching tankage across hulls - this is the pragmatic choice for all three.
The tank ships bare, without fittings, and that is where Ronco's build-to-order system does its work. Print the drawing below, mark fill, vent, pickup, and any sender port with the fitting planner on this page, and every fitting is spin-welded or thread-installed to your marks in Tustin, California before the tank leaves the plant - the same process the company has run since 1974. Specified for drinking water, the polyethylene is FDA-compliant and potable-safe. Specified with waste fittings, the identical dual-role B-series shell serves as a gray or black holding tank instead.
Full, it carries about 300 lb, so the install still wants flat bearing and proper straps even though the empty tank feels almost casual to handle. Weigh it against its heavier 36-gallon sibling and the rest of the boat tank category, or start from the maker's complete line on the Ronco Plastics hub. RV installers will find the road-side equivalents under RV water tanks. OneSource Plastics is an authorized Ronco Plastics dealer.
Technical drawing: download the Ronco Plastics B340 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.
