Aquality Winterizer is a copper-free algaecide designed for use during the winter months to maintain pool water quality during shutdown periods.
Its long-lasting formula helps prevent algae growth and keeps the water clean until the pool is reopened in the spring.

✔ Copper-free formula – safe for all pool types
✔ Prevents algae growth during winter shutdown
✔ Easy to use – simply add to pool water
✔ Ideal for pools not in use during colder months
✔ 5-liter container – economical for large pools