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

 For Freshwater

47mm  diameter and maximum streamlined thickness of 7mm

Supplied with a bolt which permits a maximum rudder thickness of 15mm

Designed to be bolted through rudders or trim tabs, the discs can also be used separately.

Weight 30g for both discs