Manufactured to US military specification A-21412(SH) by Tecnoseal in Italy, one of the worlds leading suppliers of sacrificial anodes for cathodic protection in the leisure boat market

 Magnesium Shaft Anode  for 40mm prop shafts

4 fixing bolts

81mm outside diameter, 77mm long

The anode is shaped inside so that either end and the middles clamp onto the shaft, and there is a consistent thickness of magnesium throughout.

245g

For use in freshwater