AO Smith®, 100364456, Electric Water Heater, Residential, Series: EETU-50, 50 gal Tank, 240 V, 4.5 kW Power, 1 ph, 3/4 in NPT Water Connection, Incoloy® Stainless Steel Heating Element, 21 gph at 90 deg F Rise Recovery Rate, 150 psi Pressure, Tall Tall or Short, ASME: No, 59 in H x 20-1/2 in Dia Dimensions