At 50 gallons and a 143 lb ship weight, the Ronco Plastics B177 is the heaviest-built molding in this stretch of Ronco's marine fresh water line - a tank specified when the water system is core infrastructure: liveaboards, long-range cruisers, workboats where the crew drinks what the tank carries. The FDA-compliant polyethylene shell is one piece, seamless, and immune to the corrosion and coating failures that retire metal tanks of this size.
Fifty gallons makes fitting placement a design decision, and Ronco treats it as one: fittings installed per order, spin-welded or threaded at your marked positions and sizes. Put the pickup at the true low point of your installation, split the venting to suit the compartment, land the fill under the existing deck plate. The dimensioned drawing below is the planning sheet - print it, mark it, and finalize through the fitting planner on this page.
Then respect what you are installing: full, the B177 carries about 417 lb of water. That is structural load, wanting a framed platform, full-bottom bearing, and restraint bolted to something that matters. Done right, it is also ballast in the most useful place aboard. Ronco has molded from Tustin, California since 1974. The rest of the big tanks are at boat tanks; the whole line at the Ronco Plastics hub; shipping at the freight estimator. OneSource Plastics is an authorized Ronco Plastics dealer.
Technical drawing: download the Ronco Plastics B177 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.
