Martyr Anodes CMX04 1-1/8" Shaft Anode Zinc Alloy

The Martyr Anodes CMX04 is a streamlined zinc shaft anode designed to protect 1-1/8 inch diameter propeller shafts from galvanic corrosion in saltwater environments. This precision-engineered anode features a low-profile design that minimizes drag while providing reliable cathodic protection for your vessel's running gear.

Key Features:

• Designed for 1-1/8 inch diameter shafts
• Streamlined profile reduces drag and turbulence
• Allen screw installation for secure mounting
• Premium zinc alloy construction for saltwater use
• Martyr quality meets or exceeds military specification MIL-A-18001K
• Easy to inspect and replace during routine maintenance

Martyr is the only manufacturer that offers all three alloys that protect your boat from corrosion that can occur in salt water (zinc), brackish water (aluminum) and fresh water (magnesium). Shaft anodes should be inspected regularly and replaced when depleted by approximately 50% to ensure continuous protection of your propeller shaft, strut bearings, and other underwater metals.