For the builder comparing Ronco's 9 gallon fresh water shapes, the RVB358 offers its own molded profile at a shipping weight of approximately 13 pounds. It is a light-duty potable water tank for RV service, carrying drinking water in van conversions, campers, and small trailers where the tank must conform to the space, not the other way around.
The material story is simple and strict: natural FDA-compliant polyethylene, nothing else. Molding it without pigment leaves the wall translucent, so checking the 9 gallon supply is a matter of looking at the tank, and the one-piece rotationally molded shell carries no seams, welds, or joints anywhere.
Ronco Plastics produces the RVB358 in Tustin, California, its rotomolding base since 1974, and installs spin-weld or threaded fittings on every order at the locations the customer specifies, the standard Ronco finishing step. Where a drawing is shown it represents the blank molding before fittings go in. OneSource Plastics is an authorized Ronco Plastics dealer.