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Martyr CMR03AL Aluminum Rudder/Trim Tab Anode with Allen Screw

Free shipping on orders over $29.99

$13.75

$ 6 .99 $6.99

In Stock

About this item

  • High-quality Martyr anodes are pressure diecast and manufactured to strict quality standards through an ISO 9001 Quality Management System
  • Martyr anodes offer maximum protection by maintaining quality alloys, free from impurities like iron, which can compromise performance
  • Three alloys available - Use Zinc (Martyr I) for salt water, Aluminum (Martyr II) for brackish water, or Magnesium (Martyr III) in fresh water.
  • Use alternative anode alloys when changing water conditions
  • Provides low cost cathodic protection of ocean-going vessels, structures and equipment constructed of iron, steel, aluminum, magnesium, and other metals


Alloy selection is critical for proper protection. Zinc is recommended for use in salt water (not recommended for fresh water). Aluminum is designed for use in salt or brackish water, and has better performance and longer-lasting protection than zinc. Magnesium is intended ONLY for use in fresh water, and is the only alloy proven to provide protection in fresh water. Martyr brand marine anodes are a subsidiary of Canadian Metal (Pacific). Using advanced alloys and casting Martyr brand sacrifical anodes have gained an international reputation of superior quality.


John L
2025-07-09 14:17:05
Easy to use, long lasting. A must for any boat!
G. Simon
2025-07-04 12:36:51
Had to drill into old ones to make an indentation so I could take a mallet and large screwdriver and hammer it to loosen them up enough to twist them out. I used lots of PB Blaster also.
forrestraven
2025-06-20 14:52:52
Fit like it was supposed to
La Bala blanca
2025-06-19 12:09:10
Excelente
Jason
2025-06-01 12:43:37
Great product great price fast delivery
joseph e freitas
2025-05-11 16:59:12
A
Francois Ratinaud
2025-04-23 14:40:52
as described
john wilson
2025-04-17 13:49:07
Well last year i bought Zinc only for salt water lasted the season 6 months.. This guy said Aluminum will last longer. Heck no it doesn`t. Time to get the diving mask on what a waster of money. Get only ZINC for SALT end of story. and yes my boat is grounded properly and is on a Mooring not a dock.
Barry Snow
2025-02-11 12:59:39
Fits fine
Robert Brunet
2025-02-01 14:30:29
Anodes pour trim tab de bateauEfficace, mais un peu plus petit que je ce que je croyais
Ally
2025-01-27 09:00:26
Great price.
Austin Moore
2025-01-01 14:19:16
Zinc would be better in the salt water
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