Inline Replacement Anode Zinc-2 in.
ELIMINATE CORROSION FAILURES:
53 Square Inches Zinc Anode
CONNECT DIRECTLY TO HEATER OR STAINLESS STEEL FILTER CONNECT TO THE POOL BONDING GRID TO HELP PREVENT PLASTER DISCOLORATION, BLACK WALL STAINS, AND METAL DETERIORATION OR CORROSION IN POOL LIGHTS AND RAILS.