Reliance 2500W, 240V, Standard, Copper Sheath Electric Heating Element. It is designed for high watt density operation and has a TR threaded flange. This element has a 243W per sqin and a 10" minimum tank diameter. It is compatible with Ace, State, Reliance, Sears, Rheem, Rudd, Montgomery Ward, and others with an adapter kit. It is an original part for A.O. Smith, A.O. Smith Canada, American, GSW, John Wood, Kenmore, Lochinvar, Maytag, Mor-Flo, Penfield, Reliance, Sears, State Industries, U.S. Craftmaster, and Whirlpool. It also fits Bradford White, General Electric, Rheem, Richmond, and Ruud.
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