Val-Pak Zinc Ball | Anti-Electrolysis Device for Pools | V50-202
Anode Zinc Balls prevent erosion and the plaster from fading due to electrolysis. They can also help extend the life of salt cells and prevent deteriation of stainless steel or copper elements in the pool equipment and deck equipment (pool heaters, ladders, handrails, etc.) Anode Zinc Balls can also sit in and weigh down the pool
skimmer baskets.