R-1 Rudder / Trim Tab Anode 1-7/8" CMR01 (Zinc, Aluminum, Magnesium Options) 

The R-1 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