Screw Plug Immersion Heater 1 000 W Watts Sheath Material Copper Screw Plug Material Brass Watt Density 92 sq in Heater Voltage 120V AC 1 Phase Overall Length 12 7/16 in Control Range 60 Degrees to 250 Degrees F 1 in NPT Enclosure Type NEMA 1 Min Immersion Depth 6 3/8 in Includes Thermostat