32# HP Magnesium Anode
The sacrificial anode of choice is the high potential magnesium anode case of 'primary magnesium'. State of the art production techniques yield a higher open circuit voltage (driving) potential than conventional H-1 alloy anodes. These anodes produce potentials of 1.75 Volts with a "certified" minimum current efficiency of 50%, allowing protection levels to be achieved using fewer anodes. As a result you have a higher current output anode making it ideal for use in higher resistivity soils, while also performing very well in lower resistance environments. High Potential Anodes are cast to meet ASTM B843, Alloy M1C.