Material: This RV Water Heater Element is made from steel, which is sturdy and can be used for a long time. Part Number: 520900. Easy to Use: The Replacement of Water Heater Part is easy to use, no other professional tools are needed. Purpose: The primary function of the Rv Electric Water Heater is to provide a tool for easy and safe disassembly and installation of specific components within an RV water heater. Features: The resistance heating tube of the Replacement Of Rv Water Heater Part has a built in resistance wire, which can achieve efficient heating through the resistance heat energy generated by the current, and quickly heat up the surrounding environment. Specification:SocketEnd measuring 27mm (1-1/16) and the other end 38mm (1-1/2). Total Length 15cm/5.91inch,central hole diameter of 8.5mm/0.33inch, which can accommodate a screwdriver or any rod with a diameter less than 8mm/0.31inch to be used as leverage Size Chart: Voltage: 120V Power: 1440W Package Includes:1 Socket Note: Please allow slightly errors 1-2cm differences due to manual measurement.