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- Power Rating4500 WVoltage Rating240 VAnode Rod MaterialZincASME Yes / NoNoDimensions20-1/2 in W x 49-3/4 in HEnergy Factor0.92Heating Element(2) Copper/Incoloy®ManufacturerA.O. SmithManufacturer #ENS40Pressure Rating150 psiRecovery Rate21 gph at 90 deg FSeriesProLineWater Connection3/4 in MNPT