Over The Side Immersion Heater, 12,000 W Watts, Sheath Material Incoloy(R), Watt Density 40 W/sq in, Heater Voltage 240V AC, 3 Phase, Overall Length 40 1/4 in, Enclosure Type Moisture Terminal, Min. Immersion Depth 40 1/4 in, Height 54 in, Special Information Easy Installation and Removal, Rugged Tubular Heating Element Construction, Top-Mounted Heaters for Tanks and Drums, For Use With Cleaning and Rinsing Tanks, Oil Storage Tanks, Includes Wall Riser Tube