The Ronco RVB377 packs a 5 gallon potable water supply into a molding that ships at roughly 9 pounds, making it one of the lightest tanks Ronco produces. It is a light-duty fresh water tank for RV service: think teardrops, truck campers, small van conversions, and auxiliary water points where a full-size tank is overkill.
Natural FDA-compliant polyethylene is the only material in the shell. Ronco leaves the resin unpigmented, so the wall is translucent and the water level shows through it, and rotational molding forms the tank as a single seamless piece, no joints, no welds, nothing to seep even in a tank this small.
Its fittings are a custom job done at the factory: Ronco installs spin-weld or threaded fittings at whatever locations your order specifies, the same standard treatment its biggest tanks get, and any drawing shown depicts the blank molding before that step. The RVB377 is rotomolded at Ronco Plastics in Tustin, California, in operation since 1974, and OneSource Plastics is an authorized Ronco Plastics dealer.