Voltage Rating : 240 V Current Rating : 18.8 A Wattage Rating : 4500 W Number Of Phases : 1 Tank Capacity : 50 Gal Energy Efficiency : 0.91 Recovery Rate : 21 Gph Water Connection Size : 3/4 In Water Connection Type : NPT Dimensions : 23-1/2 In Dia X 62-3/4 In H Material : Plastic Color : Gray Temperature Rating : 120 To 160 Deg F Includes : Temperature And Pressure Relief Valve