MARTYR CMR03M Magnesium Shaft & Rudder Anode, 3-3/4" | Sacrificial Anode for your Rudder, Corrosion protection for your boat in FRESH water

★★★★★ 4.1 84 reviews

US$10.58
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US$10.58
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Free shipping Free 30-day returns

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Product details

Management number 247705363 Release Date 2026/08/16 List Price US$10.58 Model Number 247705363
Category
  • PREVENT COSTLY MARINE CORROSION DAMAGE: Protect propellers, hull plating, and underwater components from galvanic corrosion. Stop pitting, metal loss, and costly repairs with reliable protection for boats in saltwater and freshwater environments.
  • FRESHWATER CORROSION DEFENSE: Magnesium anodes offer higher driving voltage for effective protection in low-conductivity freshwater, safeguarding hulls, prop shafts, and critical boat components
  • SOLD AS A COMPLETE PAIR: Includes two precision-cast sacrificial anodes with stainless steel bolt and nut hardware for secure installation on both sides of the rudder or trim tab, providing balanced corrosion protection.
  • TRUSTED MARINE BRAND, ISO 9001 MANUFACTURING: Martyr produces zinc, aluminum, and magnesium sacrificial anodes using a certified ISO 9001 process for consistent quality, reliable corrosion protection, and dependable replacement intervals.

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