Seven gallons is the step up from jerry-can camping: enough fresh water for a long weekend in a teardrop or truck camper, still small enough to hide in a cabinet. The Ronco RVB271 serves that role as a light-duty potable water tank for RV service, shipping at roughly 11 pounds.
It is molded from natural FDA-compliant polyethylene with nothing added to the resin, which keeps the drinking water surface clean and makes the wall translucent, so you can see the water level through the tank instead of guessing. Rotational molding forms the whole vessel in one seamless piece, joint-free from any angle.
Ronco Plastics has been rotomolding tanks in Tustin, California since 1974, and the RVB271 receives the company's standard finishing: spin-weld or threaded fittings installed at the exact locations your order specifies. The drawing, when shown, represents the blank molding before those fittings go in. OneSource Plastics offers the RVB271 as an authorized Ronco Plastics dealer.