taken from online search by image results, I don't know specific details.... 220V Fin Tubular Heating Element M18*25 Thread U Shape Hot Air Burning Duct for Oven 800W 1000W 1200W 1500W 2000W 1.Tube Material: 304stainless steel 2.Thread Material:304SUS 3.Voltage: 220V 4.Wattage: 500W-2KW 5.Tube length: 250mm-450mm 6.Total length(include the thread):300mm-500mm 7.Connection Screw Diameter:M18*25 8.Tube Diameter: 12mm 9.Fin Diameter:24mm 10.Application: Oven/Stove/Load Bank/Air Heater 11.Package: 1PC x Fin tubular heater
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