Rheem UV12892 Screw-In Element, 120-volt/2000-watt, Copper Element - 120V/2000W Copper non-resistored hwd - 1 in screw-in Watt density classification: hwd, input Voltage (V): 120, wattage at 120V (w): 2000, watt density at 120V (w/sq. In. ): 170 Element length - flange to tip (in.): 7.54, ACTUAL thread size - outside diameter (in.): 1-9/32, nominal thread size - (in.): 1 Threads per inch: 11-1/2, thread Type series designation: NPSM, hex head size - across flats (in.): 1-1/2