Camco 2500W 240V 9"H Water Heater Screw-In Element. It offers a high watt density of 150+ watts per square inch and requires a minimum tank diameter of 10". This element is compatible with most models of American, A.O. Smith, Bradford White, Craftmaster, General Electric, GS Wood, Kenmore, Lochinvar, Maytag, Mor-Flo, Reliance, Rheem, Richmond, Ruud, Sears, State, & Whirlpool heaters. It includes a gasket for a secure fit and comes with detailed instructions for easy installation. UL listed for safety, this element is backed by a 1-year warranty.