SeaKlear 90311SKR Prevention and Remover, 1-Gallon, Blue
Brand: SeaKlear
Color: Blue
Reliable & Effective
90-days no algae guarantee (when used according to instructions in balanced pool water)
Kills and prevents blue-green, green, yellow and black algae
Non-foaming, non-staining (when used according to instructions in balanced pool water)
11.8% Copper Sulfate Pentahydrate; 3% Copper as elemental