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Home > Anodes and Corrosion Prevention
Anodes and Corrosion Prevention
Anodes and Corrosion Prevention
Which alloy should you use? Aluminum Alloy (US MIL-A-24779(SH):
- For use in salt and brackish water
- Not recommended for use in fresh water
- Proven to last longer than zinc due to increased capacity
- Alloy is manufactured to meet or exceed US Military Specification (MIL-A-24779(SH))
Magnesium Alloy (AZ91D):
- ONLY for use in fresh water
- Not recommended for use in salt or brackish water
- The only alloy proven to protect your boat in fresh water!
Zinc Alloy (US Mil-A-18001K):
- For use in salt water
- Not recommended for use in fresh water
- Alloy is manufactured to meet or exceed US Military Specification (MIL-A-18001K)
 Anode Bolt Kits
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 A galvanic isolator prevents electrolytic corrosion. It blocks low-voltage DC currents that enter your boat via the shore power earth wire. These currents can cause corrosion to the boat’s underwater metals, like the hull, propeller, or propeller shaft.
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 Grouper anodes clip directly to engine bolt, outdrive bolt or grounding strap to provide protection against corrosion from stray current in fresh, salt, or brackish water. A great supplimental protection at the dock.
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 Aluminum, magnesium, and zinc Martyr anodes protects boat hulls from corrosion in salt, brackish, and fresh water applications.
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 Outboard and inboard/outboard anodes
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 Outboard Anode Kits
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 Aluminum, Magnesium, and zinc sacrificial anodes reduce the corrosive affects of salt, brackish, and fresh water on marine engines.
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 Rudder and Trim Tab Anodes
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 Sea Strainer Anodes
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 Aluminum, magnesium, and zinc anodes protect inboard boat's prop shaft from corrosion in fresh, salt or brackish water.
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 Quicksilver and Martyr sterndrive anode kits includes anodes needed to protect MerCruiser and Volvo drives from corrosion in fresh, salt, and brackish water applications.
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