One hundred fifty gallons in a 40.25 x 32.5 x 28.5 inch molding: the Ronco Plastics B494 concentrates enormous capacity into a footprint barely bigger than a washing machine. Workboats, off-grid coaches, and remote cabins with a transport trailer are where this tank makes sense.
The dual-role B-series design holds at every scale: your fittings decide whether this is a potable fresh water tank, food-grade polyethylene throughout, or a very large gray or black waste holding tank. Ronco installs the fittings per order, spin-welded or threaded to your marked positions, so a tank you cannot easily reposition after installation arrives plumbed for its home.
Design the structure first: about 1251 lb of water at 8.34 lb per gallon sits on that compact footprint at capacity, plus 132 lb of tank. Concentrated load, small area, no shortcuts. Print the dimensioned drawing below, verify door and hatch clearances for the install path, and finish the port layout in the on-page fitting planner.
Molded in Tustin, California by Ronco Plastics, since 1974. Study the full Ronco range for alternative proportions at this capacity, and run the freight cost estimator early, because a tank this size ships like furniture. OneSource Plastics is an authorized Ronco Plastics dealer.
Technical drawing: download the Ronco Plastics B494 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.
