The WC80-RJ1 is a popular unit with FBOs and Regional Airlines. Features include a heavy-duty galvanized frame that completely wraps the unit, protecting it from potential damage, and a heavy-gauge aluminum enclosure that will never require painting and is not affected by moisture or corrosive chemicals. The potable water tank system is constructed of 12-gauge stainless steel. The RJ1 series carts are winterized and include immersion heaters in the fill tank, with all compartments totally enclosed in high-density foam insulation. The electric pump, waste valve, flow meter, and fill hose are stored in the rear compartment, while the 12V battery and charger are isolated in a moisture-free compartment.