Finned Strip Heater, Heater Voltage 120V AC, Overall Length 21 in, Mounting Dimension 20 in, 1,900 W Watts, Watt Density 36 W/sq in, Terminals Each End, Element Width 1 1/2 in, Sheath Material 304 Stainless Steel, Material Nickel Plated Steel, 1 Phase, H x W Across Fins 1 3/8 x 2 in, Max. Sheath Temp. 1,200 Degrees F, Mounting Type Surface Mount, Slotted Hole Length 1/2 in, Slotted Hole Width 5/16 in, Screw Size 10-32, Standards UL Recognized, Includes Mounting Tabs