The Faithfull Box Type Immersion Heater Spanner is a specialist tool designed for the installation and removal of immersion heater elements in domestic hot water cylinders. This professional-grade spanner features a deep box design that provides superior access to heaters surrounded by insulation or positioned in recessed locations, making it an essential tool for plumbers and heating engineers. Manufactured from high-quality steel, this immersion heater spanner delivers reliable performance when working with standard 86mm (3? inch) immersion heater fittings. The box-type construction ensures a firm, non-slip grip on heater elements, reducing the risk of damage during installation or removal. The spanner is supplied complete with a tommy bar that provides additional leverage when dealing with over-tightened or seized elements. This feature is particularly valuable when removing old immersion heaters that may have been in place for extended periods, allowing heating professionals to wor