Mica Insulated Strip Heater Heater Voltage 120V AC Overall Length 12 in Mounting Dimension 11 3/8 in Element Width 1 1/2 in 300 W Watts Watt Density 28W/sq in Terminals Tandem at One End Sheath Material Rust Resistant Coated 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 UL Recognized