SLRN 50mm Copper Chemical Earthing is an alternative to the traditional Salt Charcoal procedure, which involves inserting an earth electrode into the ground through an auger hole and covering it with a low-resistance moisture-retaining material. Due to the corrosive nature of salt, which leaches out over time and worsens the performance of earthing, salt charcoal is avoided. SLRN Earthing provides the best SLRN 50mm Copper Earthing Electrode.