Seaward 11 Gallon Hot Water Heater with Rear Heat Exchanger - Galvanized 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.The Marine Galvanized Steel Cover offers corrosion resistance at an affordable price. This material weighs more than the other case options but is made from a strong and robust material.Features and BenefitsHorizontal Mounting onlyRobust ManufacturingHold down brackets welded to inner tankDouble wall heat exchangersSafety controlsIntegrated pressure relief valveTemperature and pressure drain tube includedMagnesium anodes available separatelyRecommended to prevent corrosion and ensure a longer Water Heater lifeSturdy, robust exteriorsIgnition protectedWARNING: This product can expose you to chemicals which are known to the State of California to cause cancer, birth defects or other reproductive harm. For more information go to P65Warnings.ca.gov.