Item Finned Tubular Heating Element Overall Length 17 7/16 in Installation Depth 16 5/16 in Heater Voltage 240V AC 3 000 W Watts Watt Density 72W/sq in Sheath Material Steel Material Steel Mounting Type 3/4-16 Threads 2 in On Center Max Sheath Temp 800 Degrees F Screw Size 8-32 1 Phase Includes Mounting and Connection Hardware