IKKY HEAT, Heating Element HE55K208VC, 5500W-208V, Replacement Bostemp, EcoSmart, Eemax, iHeat, Rheem and Titan Brands, Copper Material. SPECIFICATIONS: Power Rating: 5500W-208V, Voltage Rating: 208V, Density is for high wattage, Gasket type O-Ring included, Plug type: Screw-in, Length of the entire item, from the screws at bottom of plastic plug to the end of element "U" turn: 14" inches, Length from end of brass plug with threads to end of element "U" turn: 13" inches (including the brass threads), Length of the Copper anode element material: 12 1/2" inches (NOT including the brass threads), Weight of item not including packaging: 14.2 ounces, Sheath material: Copper Material. Certifications and approvals: UL, CSA The Heating Element is Copper, A Material with a High Corrosion Resistance. Scale and corrosion are a common cause of failure for heating elements. IKKY HEAT, USA Brand.