Rudder & Trim Tab Button Anode, Aluminum, Extra Small 1-7/8" O.D.
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Sea Shield Marine Rudder & Trim Tab Button Anode, Aluminum, Extra Small 1-7/8" O.D.
For boaters navigating brackish or salt water environments who want a longer-lasting and more environmentally responsible option, the Sea Shield Marine Extra Small Aluminum Rudder Button Anode (RB-XS-ALU-W/A) is the premium choice. Manufactured in California, USA, this pressure die-cast aluminum anode uses a specially formulated marine alloy that conforms to military specification MIL-A-24779. Aluminum anodes outlast comparable zinc anodes and rely on a less-toxic activator, making them a greener solution for corrosion protection.
At just 1-7/8" outside diameter, this extra small button anode installs cleanly on rudders, trim tabs, or any flat surface where space is at a premium. The captive stainless steel Allen Head fastener system eliminates the risk of driver slippage underwater, while the encapsulated nut and integrated lock washers ensure the anode stays firmly in place through vibration and water movement. Ideal for professional service divers and DIY boaters alike, the RB-XS-ALU-W/A offers straightforward size verification—markings are visible both inside and outside the casting. Replace when approximately half of the material has been sacrificed for optimal ongoing protection.
Key Features
- Aluminum
- 1-7/8"
- Mil-Spec: MIL-A-24779
- For use in: Salt Water, Brackish Water
- Ideal For: Rudder, Trim Tab, Strut
- Fastener: Captive Stainless Steel Allen Head
- Made in: USA
