Rudder & Trim Tab Button Anode, Zinc, Extra Small 1-7/8" O.D.
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SEA SHIELD MARINE Rudder & Trim Tab Button Anode, Zinc, Extra Small 1-7/8" O.D.
Protect your rudder and trim tabs from galvanic corrosion with the Sea Shield Marine Extra Small Zinc Rudder Button Anode (RB-XS-W/A). Designed by experienced service divers and manufactured in California, USA, this precision die-cast zinc anode conforms to military specification MIL-A-18001 to deliver the world-class cathodic protection your vessel demands.
The extra small profile—just 1-7/8" in outside diameter—makes it ideal for compact mounting surfaces on rudders, trim tabs, and struts. Installation is fast and secure thanks to a captive stainless steel Allen Head fastener; the deep-slot design prevents driver slippage even when working underwater. The encapsulated nut is permanently retained within the casting so it cannot fall out during installation, and integrated lock washers guard against loosening caused by vibration. Zinc is the proven choice for salt-water applications, actively sacrificing itself to preserve the more-noble metals of your running gear.
Whether you're a professional service diver or a weekend boater handling your own maintenance, the RB-XS-W/A delivers professional results with minimal effort. Flat surfaces are the most ideal mounting locations. Replace when approximately half of the anode material has been consumed.
Key Features
- Zinc
- 1-7/8"
- Rudder, Trim Tab, Strut
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