4500W, 240V, 1275H, Water Heater Fold Back Screw In Better Element, Low Watt Density, 75 Watts Per SQIN, Minimum Tank Diameter 13, Sears, State, Whirlpool Heaters, ULCSA Listed, Gasket Included, Fits Most Models Of American, AO smith, Bradford White, Craftmaster, General Electric, GS Wood, Kenmore, Lochinvar, Maytag, MorFlo, Reliance, Rheem, Richmond, Ruud, Detailed Instructions Included