Nava Chemicals 652226022 Copper 90-Day Algaecide 3%, 1-Quart Bottle
90 Day Algaecide is an excellent solution for long term algae prevention. This 3-percent copper algaecide is formulated to prevent staining and effective against mustard and green algae. 90 Day Algaecide can be used in all types of pools. Swimmers can immediately return to the pool after treatment