American Water Heaters E61-12U-015SV Tiny Titan Electric Utility Water Heater,12 Gallon Screw-in, Direct Immersion Heating Element, 1.65 Kilo Watts/120 Volts Non-CFC Polyurethane Foam to prevent heat loss and reduce energy costs Fused Ceramic Shield Tank for anti-corrosion protection Side Temperature and Pressure Relief Valve Opening Non-Metallic, Corrosion-Free Drain Valve