proflow sacrificial zinc anode 1/4'' npt, electrolysis corrosion inhibitor, each

Proflow's sacrificial anodes are used to combat electrolysis, or at least used for added insurance against corrosion of aluminium components such as radiators and water pumps. These are screwed into the radiator but can be used in any 1/4" NPT port of the cooling system. 64 mm length.