Aluminum suitable for salt and brackish water.
Magnesium for fresh water only. Size 5" dia. x 5/8" Material Aluminum Model R4

Price is per unit.Also available in a case of 15

• High-quality, cadmium-free anodes


• Higher protection than zinc


• 2.5 Times lighter than zinc


• Corrodes less than zinc


• Ideal for aluminum hulls


• Installation hardware included

. Please call us if interested in case pricing.