The RVB181 is Ronco Plastics' 20 gallon light-duty fresh water tank for RV service, rotationally molded in Tustin, California at a plant that has produced polyethylene tanks since 1974. Twenty gallons is a practical working supply for weekend trips in a trailer or camper, and the tank ships at 25 pounds.
Construction is FDA-compliant natural polyethylene in a single seamless molding. The natural resin is translucent, which means the tank shows its own water level, useful when filling from a hose and when tracking usage between hookups.
Order it with fittings where you need them: Ronco's standard on every tank is to install spin-weld or threaded fittings located to the customer's specification, and drawings, when shown, depict the blank molding. OneSource Plastics is an authorized Ronco Plastics dealer for tanks like the RVB181.