Thirty gallons, 32 lb, one piece of polyethylene: the Ronco Plastics B488 is the light, compact way to add serious water or waste capacity to a boat or camper without recruiting a second pair of hands for the install.
Which of those two tanks it becomes is your call at order time. The B488 is a dual-role B-series molding, so fresh water fittings turn it into a potable tank, food-grade PE and all, while waste fittings turn the same shell into a gray or black holding tank. Ronco installs the fittings per order, spin-welded or threaded exactly where you mark them, which beats hand-drilling a curved plastic wall in a cramped locker every single time.
Full, it carries about 250 lb of water at 8.34 lb per gallon, many multiples of its empty weight, so anchor the mounting into structure. Print the drawing below, position your ports against real hose runs, and lock the layout with the on-page fitting planner.
Made in Tustin, California by Ronco Plastics, molding tanks since 1974. Weigh it against the committed 30 gallon holding tank and 30 gallon water tank, or scan the whole marine line. OneSource Plastics is an authorized Ronco Plastics dealer.
Technical drawing: download the Ronco Plastics B488 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.
