• Zinc anode for Isotherm water-cooled, SP (Self-Pumping) refrigeration system heat-exchanger/thru-hull fitting
• Attaches to outer surface of thru-hull; iIncludes 2 mounting screws
This product can expose you to chemicals which are known to the State of California to cause cancer, birth defects or other reproductive harm.
www.P65Warnings.ca.gov