Screw Plug Immersion Heater, 2,000 W Watts, Sheath Material Copper, Screw Plug Material Brass, Watt Density 178.96 W/sq in, Heater Voltage 240V AC, 1 Phase, Overall Length 12 7/8 in, Control Range 60 Degrees to 250 Degrees F, 1 1/4 in NPT, Enclosure Type NEMA 1, Min. Immersion Depth 6 1/2 in, Special Information Corrosion- Electrical Wiring Hardware, Recompacted Element Bends Restore Insulation Resistance After Forming, Silicone Resin Element Seal Standard