The B459 rounds out the marine B-series at 27 gallons in a light 37 lb shell - an easy-handling tank for coastal cruisers and trailer boats where water capacity in the twenties covers a long weekend and the installer is usually the owner. It goes down a companionway solo and dry-fits without help, which is half the battle in a refit.
Like every tank in the series it is a dual-role molding: potable fittings make it a fresh water tank, sanitation fittings make it a gray/black waste holding tank, and Ronco installs your chosen set per order - spin-welded or thread-mounted at exactly the positions you mark. Print the drawing below, mark the fitting locations from your boat's real plumbing, and check the sizes with the on-page fitting planner.
Full, it carries about 225 lb of water, so treat the mounting shelf as structure even though the tank itself is light. Rotomolded in Tustin, California by Ronco, tank specialists since 1974. Neighboring capacities in both lighter and heavier shells are in the boat tank category, and the complete Ronco range we carry is on the Ronco Plastics hub. OneSource Plastics is an authorized Ronco Plastics dealer.
Technical drawing: download the Ronco Plastics B459 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.
