The Ronco Plastics B384 offers 48 gallons in a light-wall molding that ships at 44 lb, an easy two-person carry and a one-person install in most compartments. It sits in the B-series marine family, which means dual-role service: fitted for potable use, the food-grade polyethylene carries drinking water; fitted for waste, the same shell handles gray or black holding duty. The tank never cares which; the fittings decide.
Full, it holds about 400 lb of water at 8.34 lb per gallon, so light shipping weight should not tempt you into light mounting. Continuous base support, solid strapping.
Print the drawing below, mark your fitting positions, and the factory installs them per order, spin-welded or threaded to those exact spots. The fitting planner on this page organizes the whole request. That per-customer finish has been Ronco's method in Tustin, California since 1974.
Related capacity under boat tanks, RV water tanks, and the Ronco hub. OneSource Plastics is an authorized Ronco Plastics dealer.
Technical drawing: download the Ronco Plastics B384 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.
