Nonpressure Rated Flanged Heater 9 000 W Watts Sheath Material Incoloy(R)800 Watt Density 40 sq in Flange Size 6 x 6 in Heater Voltage 480V AC 3 Phase Overall Length 18 1/8 in Enclosure Type NEMA 1 Min Immersion Depth 15 1/2 in Flange Material Steel Includes 240V 3 Phase Conversion Kit Gasket