Immersion Heater, 3,000 W Watts, Sheath Material Incoloy(R), Screw Plug Material Brass, Watt Density 133 W/sq in, Heater Voltage 240V AC, 1 Phase, Overall Length 12 7/8 in, Control Range 266 Degrees F, 1/2 in NPT, Min. Immersion Depth 12 in, Flange Material PTFE, Special Information Epoxy Seal at Lead End, For Use With Water, Includes Screw Plug