Screw Plug Immersion Heater, 7,500 W Watts, Sheath Material Copper, Screw Plug Material Brass, Watt Density 65 sq in, Heater Voltage 480V AC, 3 Phase, Overall Length 22 9/16 in, Control Range 60 Degrees to 250 Degrees F, 2 in NPT, Enclosure Type NEMA 1, Min. Immersion Depth 16 in, Includes Thermostat