Cadmium free, environmentally friendly.
Aluminum: For salt and brackish water. Conform to: Mil-Spec A-24779(SH)
Magnesium: For freshwater only. Conform to: Mil-Spec A-21412(SH) Fits 200-250 HP Material Magnesium

Price is per unit.Also available in a case of 4 Includes:

• Block anode for gimbal housing (1)
• Skeg for ventilation plate (1)

. Please call us if interested in case pricing.