5-0" diameter R-5 rudder anode. Also used on trim tabs.
Locked in nut, won't fall out during installation
Hex head bolt
Highest quality aluminum alloy meets Mil-A-24779 specs
We highly recommend these specialized anodes as a replacement for magnesium anodes on boats used in fresh water, and
For boats kept on boat lifts or trailers and used in salt water.
These premium quality Navalloy Anodes are specially made to be effective in all types of water: salt, brackish and fresh. Read about these anodes here