Zinc ring anode 20x7 mm

• Ring form factor with 20 mm inner diameter and 7 mm width enables direct fitment around standard propeller shafts of corresponding size.
• Zinc alloy composition provides effective sacrificial protection against galvanic corrosion in saltwater and brackish water conditions.
• Compact dimensions make this anode suitable for installations where space around the shaft or fitting is restricted.
• Acts sacrificially to protect the shaft, cutlass bearing housing, and adjacent stern gear from electrochemical attack.
• Should be inspected at haul-out and replaced when the ring profile has visibly reduced due to sacrificial consumption.