The B479 lands on a tidy coincidence: 33 gallons of capacity in a 33 lb molding - almost exactly a pound of tank per gallon carried. That ratio marks it as the balanced member of Ronco's marine B-series, neither the armored heavyweight nor the thinnest shell, and it is the one to reach for when nothing about the installation is extreme.
Dual-role, like its siblings: specify fresh and the polyethylene is FDA-compliant potable grade; specify holding duty and the same shell runs gray or black waste. Filled with water it carries about 275 lb of contents, so mount it on structure and keep it low in the hull where the mass earns its keep as ballast.
Every B479 gets its fittings at order time - spin-welded or thread-installed to your marks at the Tustin, California plant Ronco has operated since 1974. Print the drawing below, pencil in fill, vent, and pickup, then commit the layout in the on-page fitting planner.
Compare shapes under boat tanks, cross-shop the land-duty line under RV water tanks, or see everything on the Ronco Plastics hub. OneSource Plastics is an authorized Ronco Plastics dealer.
