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The Martyr CMR03 is a premium 3-3/4" zinc rudder and trim tab anode designed to protect your boat from galvanic corrosion in saltwater environments. Built with high-purity alloy and durable stainless-steel hardware, it ensures long-lasting protection for underwater metal components. Key Features 3-3/4" diameter zinc sacrificial anode for rudder & trim tab protection High-purity alloy meets military-grade corrosion protection standards Includes stainless steel Allen-head bolt for secure installation Designed for saltwater marine environments Easy DIY installation with reliable long-term performance Helps extend the life of rudders, trim tabs, and underwater fittings
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🇺🇸 Ship from USA · On Agora since 2026
$15.99