Seaward 11 Gallon Hot Water Heater with Rear Heat Exchanger - Stainless Steel - 240V - 1500WWhale Electric Water Heaters includes models with the very latest technology. All heaters are manufactured from only highest quality materials and designed to specifically withstand harsh marine conditions.Water Heaters with a Stainless Steel cover offer high levels of corrosion resistance with a modern stainless steel finish. These heaters are a bit lighter than those wearing the galvanized outer cover and heavier than the epoxy coated versions.Features and Benefits. Horizontal Mounting only. Robust Manufacturing. Hold down brackets welded to inner tank. Double wall heat exchangers. Safety controls. Integrated pressure relief valve. Temperature and pressure drain tube included. Magnesium anodes available separately. Recommended to prevent corrosion and ensure a longer Water Heater life. Sturdy, robust exteriors. Ignition protected. WARNING: This product can expose you to chemicals which are kno