A tank catalog with a 16 and an 18 needs a 17, because hulls do not round. The B123 is the 17-gallon marine water tank for the locker that measured out between the standard sizes - a 25 lb blank in FDA-compliant potable polyethylene, molded seamless, shipped clean with no fittings installed until you mark where they belong.
Full, it carries about 142 lb at 8.34 lb per gallon, an easy structural ask for any properly framed shelf. And like the rest of the B-series it is a dual-role molding: waste fittings turn the same blank into a compact holding tank. Fresh or waste, one mold - the decision rides on your fitting order, and it ships plumbed for neither.
Since 1974, Ronco's Tustin, California plant has installed fittings per order: spin-welded or threaded, exactly at your marks. Print the drawing below and mark your fitting locations, or set them on the on-page fitting planner as you order. The sizes either side of this one live in boat tanks, and the full spread is on the Ronco Plastics hub. OneSource Plastics is an authorized Ronco Plastics dealer.
Technical drawing: download the Ronco Plastics B123 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.
