The RVB324 holds 65 gallons, which is the point where a fresh water tank stops being a weekend convenience and starts running a rig for real stretches between fills. Showers, dishes, drinking water for a family: 65 gallons covers several days of normal use, and because water runs 8.34 pounds per gallon, it also means you should decide early where in the chassis that mass is going to ride. Ronco's technical drawing below gives you the exact footprint to plan against.
This is a light-duty B-series molding in translucent natural polyethylene, FDA-compliant for potable water, shipped at 101 pounds. The translucent wall doubles as a level gauge, and the natural resin shows contamination or sediment instead of hiding it, which is exactly what you want in a tank you drink from. Ronco has run this class of molding at its Tustin, California plant since 1974.
Every RVB324 leaves the plant with fittings installed to order: spin-welded or threaded, placed wherever your plumbing needs them. Print the drawing, mark your fill, outlet, and vent locations, and use the fitting planner on this page to lock the spec before you buy. A tank with fittings where your lines already run saves hours of adapter work at install time.
Compare footprints across the full RV water tank lineup or the complete Ronco Plastics catalog, and price shipping to your door with the freight estimator. OneSource Plastics is an authorized Ronco Plastics dealer.