Over The Side Immersion Heater, 2,000 W Watts, Sheath Material Copper, Screw Plug Material Brass, Watt Density 46.37 W/sq in, Heater Voltage 120V AC, 1 Phase, Overall Length 17 in, Control Range 60 Degrees to 180 Degrees F, 1 1/4 in NPT, Enclosure Type NEMA 1, Min. Immersion Depth 11 3/4 in, Special Information Corrosion- Electrical Wiring Hardware, Recompacted Element Bends Restore Insulation Resistance After Forming, Silicone Resin Element Seal Standard