This Tecnoseal zinc shaft anode protects the boat shaft against galvanic corrosion in saltwater by corroding instead of the shaft's and engine's metal parts.
The anode fits shafts with an inner diameter of 31.8 mm, corresponding to 1¼" or 5/4", and has an outer diameter of 70 mm.
Metal inserts at the bolt holes contribute to secure fastening. When mounting, the shaft must be cleaned of paint, grease, and rust to ensure direct metal-to-metal contact between the anode and the shaft.
Key features
Protects boat shaft against galvanic corrosion in saltwater
Zinc anode that corrodes instead of the shaft's metal parts
Fits shafts with an inner diameter of 31.8 mm
Outer diameter of 70 mm
Metal inserts at bolt holes for secure fastening
