Cartridge Immersion Heater 3 000 W Watts Sheath Material Incoloy(R) Screw Plug Material Brass Watt Density 124 sq in Heater Voltage 480V AC 1 Phase Overall Length 11 1/2 in Control Range 266 Degrees F 3/4 in NPT Min Immersion Depth 10 1/2 in Flange Material PTFE Includes Brass Screw Plugs