HD56A 0.4kg Disc Anode – Aluminum Sacrificial Disc Anode
HD56A 0.4kg Disc Anode – Aluminum Sacrificial Disc Anode
Infographic highlighting the superiority of aluminum anodes with benefits listed.
Comparison chart between Aluminum and Zinc for water types and properties
Diagram explaining how anodes work to prevent galvanic corrosion damage on boats.

HD56A 0.4kg Disc Anode – Aluminum Sacrificial Disc Anode

$11.08 Sale

Protect your vessel’s hull and underwater metals from galvanic corrosion with the HD56A 0.4kg Disc Anode. Manufactured from Performance Metals Navalloy® aluminum alloy, this marine disc anode provides reliable corrosion protection in saltwater, brackish water, and freshwater environments.

Designed as a replacement for ZD56 and AD56 zinc anodes, the HD56A delivers long-lasting performance and efficient cathodic protection for a wide range of marine applications. Its compact disc design makes it ideal for hull protection and other underwater metal components.

Key Features

  • Replaces ZD56 and AD56 zinc anodes
  • Helps protect hulls and underwater metals from galvanic corrosion
  • Manufactured from Navalloy® aluminum alloy to MIL-DTL-24779 specifications
  • Suitable for use in saltwater, brackish water, and freshwater
  • Compact disc design for versatile marine applications
  • High-capacity aluminum construction for long service life
  • Ideal for commercial and recreational vessels
  • Important: Do not mix aluminum and zinc anodes on the same vessel. For best corrosion protection, use the same anode material throughout your anode system.

Specifications

  • Material: Navalloy® Aluminum Alloy
  • Application: Disc Anode
  • Weight: 0.9 lbs (0.4 kg)
  • Zinc Equivalent Weight (ZEW): 1.0 lbs (0.45 kg)
  • Water Compatibility: Salt, Brackish, and Fresh Water

Includes

  • HD56A Disc Anode