Twelve inches wide, twelve inches tall, twenty long: the B124 is a 14-gallon tank shaped like a channel section, and channels are where it lives - between stringers, alongside a keelson, in the narrow chase an RV frame leaves between rails. Its marine-and-RV billing is earned by that geometry; a foot-square cross section fits both worlds' tightest spaces.
It is a dual-role molding. Fresh fittings make it a potable tank in FDA-compliant polyethylene; waste fittings make it a slim holding tank. Neither is installed until you order - the blank ships clean. At 15 lb empty it is a one-hand carry, and full it holds about 117 lb of water at 8.34 lb per gallon, low enough to mount in the narrow spots it was drawn for.
Ronco rotomolds it in Tustin, California, as the shop has since 1974, and installs spin-weld or threaded fittings per order at your marks: print the drawing below and mark the locations, or click them onto the on-page fitting planner. Slim siblings and every other proportion are in boat tanks and RV water tanks; the whole catalog is on the Ronco Plastics hub. OneSource Plastics is an authorized Ronco Plastics dealer.
Technical drawing: download the Ronco Plastics B124 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.
