The Ronco Plastics B500 is a long, slender 16 gallon molding with a purposeful 74 lb of wall, a thick-skinned tank shaped for the narrow chases and bilge-side runs where tanks get leaned on, kicked, and loaded against. Capacity is modest; durability is not.
Like its B-series siblings it is a dual-role shell. Fresh water fittings make it a potable tank, the polyethylene food-grade; waste fittings make it a slim gray or black holding tank. Because narrow installs leave no room for port-placement error, Ronco installs each fitting per order, spin-welded or threaded exactly where you mark, and the tank arrives ready to connect.
Full, it holds about 133 lb of water at 8.34 lb per gallon, so tank and contents together stay manageable even in cantilevered mounting. Print the dimensioned drawing below, slide it against your chase, and confirm the fitting layout in the on-page fitting planner.
Molded in Tustin, California by Ronco Plastics, tank makers since 1974. The 16 gallon holding tank is the single-role comparison, and the boat tank collection carries other slim formats; the freight cost estimator handles delivery pricing. OneSource Plastics is an authorized Ronco Plastics dealer.
Technical drawing: download the Ronco Plastics B500 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.
