Sea Shield Marine Replacement Propeller Nut Anodes
Nut Zinc, Nut Aluminum
Made in the U.S.A.
- Conform to MIL-A-18001 spec.
- Includes Stainless steel insert
- Zinc anodes are used in Salt water, Aluminum anodes are used in brackish water.
The “B” nut is the replacement anode for Wesmar Bow Thrusters (7/8″ shaft)