Eight inches tall. That single dimension defines the Ronco Plastics B480, a 19 gallon dual-role tank spread across a 29 x 23 x 8 inch pancake footprint. It slides under berths, under RV floors, under cockpit soles, into the horizontal slots every other tank format wastes.
Being a B-series molding, the B480 ships as whatever your fittings make it: a fresh water tank, food-grade polyethylene in potable service, or a gray or black waste holding tank. In a tank this shallow, port placement is everything, and that is why Ronco installs fittings per order, spin-welded or threaded to your exact marks, rather than molding them in at a guess.
Full, it holds about 158 lb of water at 8.34 lb per gallon, spread wide and low, about the friendliest weight distribution a tank can offer. Empty, it is 26 lb. Print the drawing below, slide the dimensions into your space, and finish the port layout in the on-page fitting planner.
Molded in Tustin, California by Ronco Plastics, tank makers since 1974. See the low-profile end of the RV water tank line, the dedicated 19 gallon holding tank, and the wider marine collection. OneSource Plastics is an authorized Ronco Plastics dealer.
Technical drawing: download the Ronco Plastics B480 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.
