Two hundred gallons is not an RV amenity - it is a water system. The RVB485 tops this stretch of Ronco's B-series with 200 gallons of fresh capacity, the kind of supply that runs a crew trailer for a week, feeds a mobile wash or grooming operation through a full route, or keeps a remote cabin build wet between hauls. Tanks this size get specified by people who have done the arithmetic on how often they can afford to refill, and decided the answer is: rarely.
The molding weighs 148 pounds empty. Full is another story entirely - at 8.34 pounds per gallon, 200 gallons is a load you engineer for, not a load you hope about. Put it low, spread it over frame structure, and give the base continuous support; the light-duty wall schedule is designed for exactly that kind of fully supported installation. The material is Ronco's standard potable spec: FDA-compliant polyethylene, translucent natural finish that shows the water line through the wall, molded in Tustin, California on tooling proven since 1974.
Fittings are installed per order - spin-welded or threaded, located to your marks - and on a tank this large the layout deserves real thought: fill height, vent routing, pickup placement for full drawdown. Print the technical drawing below, plot the system on it, and finalize with the fitting planner on this page.
For smaller capacities, browse the RV water tanks; for the entire molding list, the Ronco Plastics hub; and before you commit, run the freight estimator - a tank this size ships as real freight. OneSource Plastics is an authorized Ronco Plastics dealer.