Bradford White ElectriFLEX LD® (Light-Duty) 15 Gallon Commercial Electric Utility Water Heater. 3-Year Tank Warranty, 6/4.5 kW, 240/208 Volts, Single Phase. The Bradford White ElectriFLEX® Series offers Field Convertibility for kW, Voltage, and Phase. The "-264" indicates that this SKU comes with an Aluminum Anode Rod. The "-284" indicates that this SKU comes with an Incoloy Element.