Camco's 4500W 240V screw-in type high watt density water heater elements can be used in all screw-in replacement situations if the same wattage and voltage are used. High Watt Density water heater elements are the most common and the same type of element provided with most new water heaters. They are easy to install and come with detailed instructions on how to replace your old element. Screw-in type elements fit most models of American, AO Smith, Bradford White, Craftmaster (prior to 1991), GE, GS Wood (certain models), Kenmore, Lochinvar, Maytag, Mor-Flo, Reliance, Rheem, Richmond, Rudd, Sears, State, Whirlpool and most water heaters manufactured after 1994. The replacement element must be the same voltage and wattage as the element being replaced. Never exceed the nameplate rating on the water heater.