The Ronco Plastics B405 is a 30 gallon B-series molding at 34 lb shipping weight, the light, easy-handling take on a capacity that anchors many small-boat and camper water systems. Thirty gallons runs a couple through a long weekend with sensible use. The dual-role shell finishes either way: potable fittings for a food-grade fresh water tank, waste fittings for a gray or black holding tank.
Filled, it holds about 250 lb of water at 8.34 lb per gallon. Support the base fully; the light wall is for protected installs, not for spanning voids.
Print the drawing below and mark where each fitting goes; the factory installs them per order, spin-welded or threaded to your layout, with the fitting planner on this page organizing the request. Ronco has molded and finished tanks in Tustin, California since 1974.
Compare boat tanks, RV water tanks, and RV holding tanks. OneSource Plastics is an authorized Ronco Plastics dealer.
Technical drawing: download the Ronco Plastics B405 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.
