Robelle 3520 Swimming Pool Triple-Action Winter Kit, 20000-Gallon

Robelle 3520 Swimming Pool Triple-Action Winter Kit, 20000-Gallon

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• Includes the chemicals you need to close your pool, protect your pool this winter, and yield the most stress-free spring opening you’ve ever had
• The Summer and Winter Multi-Purpose Algaecide will prevent algae growth during the winter months
• The Winter Stain & Scale Control will prevent stain and scale while the pool is closed
• Oxidizing Shock and Swim is the highest strength non-chlorine oxidizing pool shock - effective at eliminating organic contaminants
• The 3520 winter kit has a 2 lb Oxidizing Shock &Swim