Screw Plug Immersion Heater, 12, 000 W Watts, Sheath Material Copper, Screw Plug Material Brass, Watt Density 44.04 W/sq in, Heater Voltage 480V AC, 3 Phase, Overall Length 39 5/16 in, Control Range 60 Degrees to 250 Degrees F, 2 1/2 in NPT, Enclosure Type NEMA 1, Min. Immersion Depth 32 1/4 in, Special Information Corrosion-Resistant Electrical Wiring Hardware, Recompacted Element Bends Restore Insulation Resistance After Forming, Silicone Resin Element Seal Standard. This item has been restricted from sale in the following state (s): []