Hull Anode Mini Divers Dream Aluminum 6 inch x 4 inch | Martyr CMDIVERMINIA Martyr Hull Anode Mini Divers Dream Aluminum 6 inch x 4 inch | CMDIVERMINIA Mini Divers Dream sacrificial anode Aluminum anode is for use in brackish and salt water applications Martyr anodes are made of a high purity specialized alloy based on the US Mil Spec Bolt-on style anode is designed to mount to hull 5.9 in. length 3.9 in. height 1/2 in. thickness