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Martyr Anodes CMGROUPER Zinc Grouper Hanging Anode with 15' Cable

Manufacturer

Martyr Anodes

<h3>About Martyr Anodes</h3><p>When it comes to defending a vessel against galvanic corrosion, few names carry the authority of <strong>Martyr Anodes</strong>. A flagship brand within the <strong>CMP Group</strong>, Martyr has its roots in foundry operations that date back to the early 1900s in Vancouver, BC, growing from a local manufacturer into a globally recognized leader in marine cathodic protection. Today, the brand supplies boaters, commercial operators, and marine professionals worldwide with sacrificial anodes engineered to guard hulls, propellers, rudders, shafts, engines, and other submerged components from the relentless effects of corrosion.</p><h3>Three Alloys, Every Water Type</h3><p>What sets Martyr apart from competing anode manufacturers is its position as the only brand to offer all three protective alloys — zinc, aluminum, and magnesium — under a single product line. This matters because the correct alloy depends entirely on the water environment a vessel operates in. Zinc anodes are the classic choice for aggressive saltwater conditions, while aluminum anodes are preferred for saltwater and brackish environments, offering superior corrosion resistance with a reduced environmental footprint. Magnesium anodes are the go-to solution for freshwater use, delivering effective sacrificial protection without degrading too quickly. Whatever the operating environment, Martyr has an engineered solution to match.</p><h3>Military-Grade Manufacturing Standards</h3><p>Martyr does not cut corners on metallurgy. Every anode is pressure die-cast and manufactured to meet or exceed <strong>U.S. Military alloy specifications</strong>, using only high-purity metals. Each alloy batch is lab-tested with full certification and traceability available upon request. This rigorous quality management — operating under an ISO 9001 framework — ensures that each anode delivers consistent, long-lasting galvanic performance across a wide range of marine environments, from recreational pleasure craft to commercial vessels and naval applications.</p><h3>Anode Kits for Simplified Protection</h3><p>For boaters who want a complete, hassle-free maintenance solution, Martyr&rsquo;s <a href="/7452-martyr-anodes-anode-kits-200102">Anode Kits</a> offer pre-packaged sets engineered for specific engine models and boat types. Compatible with major marine engine brands including Yamaha, Mercury, Volvo, and MerCruiser, these kits take the guesswork out of corrosion protection and ensure every critical system receives optimal coverage in a single purchase.</p><h3>Sustainability at the Core</h3><p>Martyr and the CMP Group have made environmental stewardship a cornerstone of their mission. Traditional zinc anodes can contain cadmium, a metal that poses risks to aquatic ecosystems. Martyr actively advocates for the adoption of aluminum and magnesium alternatives that deliver equal or superior protection while minimizing harm to marine environments — embodying the brand&rsquo;s philosophy of &ldquo;Protect your boat, protect our waters.&rdquo; With over 1,000 anode types available and a catalog that fits virtually every major marine engine and boat model, Martyr remains one of the most comprehensive and trusted sources for marine corrosion protection in the world.</p>

Part Number

CMGROUPER
06/03/2036 7:45 AM
Sale Price

$47.72

In Stock (10+)

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Usually delivered within 2 days

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No Hassle Returns

Live-in-stock inventory

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Fitment guaranteed

Fitment guaranteed

Product Details

The Martyr CMGROUPER Grouper Anode is an easy and convenient way to add extra corrosion protection to your boat, providing temporary supplemental protection when mooring in various water environments. This clamp-on anode is an excellent device to supplement a vessel's existing anode system, especially to counteract stray current from defective shore power.

Key Features:

  • 15-foot cable length with alligator clip attachment
  • Zinc alloy construction for saltwater applications
  • Dimensions: 8" x 3" x 1.6"
  • Meets or exceeds U.S. Military Specification (US Mil-A-18001K)
  • Fish-shaped design hangs below hull bottom using cable secured to a cleat
  • Die cast and manufactured to ISO 9001 quality standards

Installation:

  • Clip to grounding strap where possible, or to a component wired to the boat's common DC ground
  • Attach alligator clip to outboard or outdrive mounting bolt, rudder, or strut ground strap
  • Do NOT connect to battery

Zinc anodes are specifically designed for saltwater use only and are not recommended for freshwater applications. This anode offers low-cost cathodic protection for ocean-going vessels, structures, and equipment constructed of iron, steel, aluminum, magnesium, and other metals.

Good prices and cheap shipping.

Best Price! and quick shipping A++

Ecxellent site

best price - better than Summit Racing, and you have it in stock!

You have it in stock not like most sites that advertise only to tell you it's not available but had wrong length on the cross bar

Quick shipping on my order. Thanks

good

Best price on the Internet.

Thanks

Quick n easy faster than I have thought to receive my order I was mind blown

Excellent to deal with. Best price in the country and immediate handling. Received via ground across the country in 4 days. Thx!!!

absolutely Awesome! Great Prices!

great price $60.00 less than summit will shop here again!

Same product as others with better price. Simple and easy to buy products on website and good shipping.

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