Strip Heater Heater Voltage 240VAC Terminals Parallel Overall Length 21 In. Mounting Dimension 20 In. 750 Watts Watt Density 13W/sq. in. Sheath Material 304 Stainless Steel Material Seamless Stainless Steel Mounting Type Surface Mount Slotted Hole Length 1/2 In. Slotted Hole Width 5/16 In. 1 Phase Max Sheath Temp 1200 Degrees F Screw Size 10-32 Standards UL Recognized Includes Mounting Tabs