Stainless Steel Finned Strip Heaters 1-1/2"W element 5/16"W x 1/2"L slotted holes 10-32 screw terminals 1-3/8"H x 2"W across finsSeamless 304 stainless steel tube provides the best combination of physical strength and resistance to high temps. and chemical corrosion. Sheath temp.: 1200°F max. Fins are nickel-plated steel.UL Recognized. Item: Finned Strip Heater Heater Voltage: 120VAC Overall Length: 12" Mounting Dimension: 11" Watts: 900 Watt Density: 40W/sq. in. Terminals: Each End Element Width: 1-1/2" Sheath Material: Seamless 304 Stainless Steel Material: Nickel Plated Steel Phase: 1 H x W Across Fins: 1-3/8 x 2" Max. Sheath Temp.: 1200 Degrees F Mounting Type: Surface Mount Slotted Hole Length: 1/2" Slotted Hole Width: 5/16" Screw Size: 10-32 Standards: UL Recognized Includes: Mounting Tabs