The Maddox Anode is a low-voltage composite alloy anode designed to protect hard metals from galvanic corrosion. It enhances anode performance for improved cathodic protection efficiency, reducing issues associated with overprotection such as coating failure on metallic structures, haloing around thru-hulls, and excessive growth on underwater surfaces.
Product Code: MPS.MDXWD
The MPS Maddox Large Wedge Anode is a single unit large anode with a tapered front edge, reducing drag. Best for under hull mounting. It comes with a 0.39-inch (10mm) hole with 0.98-inch (25mm) rebate pre-drilled for installation. A second hole should be drilled to suit the application. Comes with 4 x M10 star washer.
Key features:
- Improves vessel galvanic corrosion protection efficiency.
- For use on fiberglass, carbon fiber and wooden boats to protect hard metals - stainless steel & bronze.
- Maintains performance of protective coatings on metallic structures.
- Zinc and Cadmium free – environmentally friendly.

Product Guide:
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Anode Installation Guide:
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