Mica Insulated Strip Heater, Heater Voltage 120V, Overall Length 8 in, Mounting Dimension 7 3/8 in, Element Width 7/8 in, 150 W Watts, Watt Density 22 W/sq in, Terminals Tandem at One End, Sheath Material Steel, 1 Phase, Max. Sheath Temp. 900 Degrees F, Slotted Hole Length 9/32 in, Slotted Hole Width 3/8 in, Screw Size 10-32, Standards CSA Certified, UL Recognized