Screw Plug Immersion Heater 3 000 W Watts Sheath Material Copper Screw Plug Material Brass Watt Density 48 sq in Heater Voltage 120V AC 1 Phase Overall Length 19 in Control Range 60 Degrees to 250 Degrees F 2 in NPT Enclosure Type Terminal Min Immersion Depth 11 7/8 in For Use With Water Applications Includes Thermostat