Vetus ZINK25C Type 25 Hull Sacrificial Zinc Anode (Excluding Connection Kit)

The Vetus ZINK25C is a Type 25 rectangular hull sacrificial zinc anode engineered to provide reliable cathodic protection for boats operating in salt water or brackish water environments. Sold excluding the connection kit, this anode meets the rigorous U.S. MIL-A-18001K military specification — the highest standard for zinc anode material — ensuring maximum effectiveness against galvanic corrosion.

Cathodic protection is essential for preserving all underwater metal components, and the ZINK25C is suitable for use on steel, wooden, fibreglass, and aluminium hulls alike. A protective paint layer on the mounting face prevents damage to your hull's existing paintwork during installation.

Key Features:

• Type 25 rectangular zinc hull anode — ideal for salt water and brackish water use
• Manufactured to U.S. MIL-A-18001K military-grade zinc alloy specification
• Streamlined profile minimizes drag and water resistance
• Protective paint coating on mounting side preserves hull finish
• Compatible with steel, fibreglass, wooden, and aluminium hulls
• Mounts via weld-on studs (steel hulls) or through-hull bolts (fibreglass/wooden hulls) — connection kit sold separately
• All metal parts below the waterline must maintain direct contact with the anode for effective protection

Specifications:

• Weight: 2.40 kg (approx. 5.3 lbs)
• Dimensions: 250 mm x 65 mm x 30 mm (9.84" x 2.56" x 1.18")
• Hole centres: 140 mm (5.51")
• Hole diameter (large): 32 mm
• Hole diameter (small): 13 x 25 mm

Note: The connection kit (studs or bolts) is not included and must be ordered separately. Zinc anodes are recommended for salt water and brackish water applications. For fresh water use, aluminium anodes are typically preferred.