90-Day Algicide is safe for all surfaces and guaranteed not to stain. Its long-lasting action kills blue-green, black and mustard algae, with a money-saving reduction of chlorine and shock usage.
- Kills and prevents all types of algae
- Lasts 90 days/only 4 treatments per year
- Guaranteed non-staining formula
- Money-saving reduction in chlorine & shock usage
- Enhances performance of salt chlorine generators
- Best value of all algaecide formulations
- 500 mL treats 40,000 L