#2190-12

Robelle 2190-12 Black Algaecide for Swimming Pools (12 Pack), 1 quart

Rubella Black Algaecide is a 60% poly algaecide perfect for preventing algae growth and killing existing black, green and yellow/mustard algae. Rubella Black Algaecide also helps clear up cloudy water. It does not affect pH, will not stain surfaces or leave residue. This product is non-foaming, non-metallic and allows swimming immediately after use. Use weekly to prevent algae growth. Dosage: Use…