CMR04 R-4 Rudder/Trim Tab Anode 

The R-4, 5" Rudder/Trim Tab Anode are used on the Rudders or Trim Tabs of the vessel. The anode Alloy can be purchased in Zinc (Salt water environment), Aluminum (Salt + Brackish water environment) or Magnesium (Fresh water environment).

• Rudder anodes are sold in pairs, with stainless steel bolt and nut.
• Easy installation underwater
• Bolt retaining washers prevent the anode from falling off