Monument Immersion Heater Spanner Box Type

The Monument 358J Deep Box Immersion Spanner is a specialist plumbing tool designed for installing and removing immersion heater elements with precision and ease. This professional-grade spanner features an octagonal box ring at the base of a robust steel cylinder, providing a secure grip on immersion heater nuts in even the most challenging installations. The deep box design is particularly valuable when working with immersion heaters that are surrounded by insulation or recessed into tight spaces, allowing full access where standard spanners cannot reach. The tool is supp